High speed spatial light modulators with analogue phase control for next generation imaging, photonics, and laser manufacturing
Lead Research Organisation:
University of Cambridge
Department Name: Engineering
Abstract
Liquid crystal (LC) technology has become a dominant force in the displays market. To date, a lot of research and development has been focussed in optimising the LC material properties for displays; however, there are an increasing number of other non-display applications that could benefit from LC technology if it were used to modulate the phase of the light rather than its intensity. Specifically, a dynamic optical element based upon LC technology that can modulate the phase rapidly and with analogue control will be of significant importance in the development of next-generation adaptive optics (AO) for a range of technologies whereby aberration correction and/or dynamic parallelisation are required. Notable advances have already been made using AO in areas such as microscopy, optical tweezing, holographic projection, and laser machining. For example, AO is expanding the capabilities of biomedical microscopy by enabling imaging of biological process in thick and even live tissue specimens, through compensation of aberrations. Such research is now being extended to super-resolution microscopy, which reveals cellular structures an order of magnitude lower than the diffraction limit. AO devices are also used for opto-genetics and photo-activation, where it is necessary to reconfigure 3D light fields at high speeds so that specific cells can be selectively activated. New and improved LC devices would therefore enable a range of research that underpins the life and medical sciences. Equally, adaptive control of ultra-fast lasers for optical nano-fabrication would benefit considerably from new LC technology, allowing pulse shaping and parallelisation at high speeds to be realised, supporting future advances in high-value manufacturing. The potential of using dynamic optical elements, such as LC devices, in all of these applications is well substantiated, but current performance is constrained by the switching speeds and/or phase modulation capabilities of the display-type devices. Increasing device speed will satisfy an as-yet unmet demand from these applications and could enable a greater impact in all of these application areas. Moreover, the development of a new fast-switching SLM with analogue phase control may potentially pave the way to new application spaces that are yet to be realised.
Planned Impact
The true impact of this proposal lies in the delivery of a new electro-optical effect which is fundamentally compatible with LCoS technology, delivers greater than 2pi phase depth (minimum of 8 levels) and has a frame rate in excess of 500Hz. Such an effect will revolutionise many different applications which have been, up till now, been held back by modulation technology. The results of this project will help to further expand the potential impact of many techniques and application which use the phase of the light rather than the amplitude, allowing diffraction and interference to be the means of light manipulation. The true extent of these applications has only just begun, and their likely effect on the world and industry of photonics will be substantial.
The impact of this proposed work will be both multidisciplinary as well as cover a variety of different output mechanisms. Figure A shows the mechanism behind delivering such revolutionary new materials across all three Universities. The combination of chemistry, physics and engineering is an essential mix which will help to guarantee success. The diagram in Figure A also demonstrates the materials design cycle which ensures a continuous flow of new materials and experimental feedback which is a vital aspect of this type of project. The academic route of publication in world open access leading journals will continue and the successfully optimised novel materials, devices and embodiments in applications will be filed as intellectual property. This approach allows both academic progressions in the field as well as the potential for industrial development. Examples of the success of these applications in the commercial world can already be seen through partnerships such as optical tweezing and the development of start-up companies such as Light Blue Optics.
The economic impact of this proposal is very significant as modern technology is placing an every increasing demand on different types of laser devices and systems. Recently we have seen LCoS based holograms move into commercial projection displays (both front and rear) with huge success, proving truly exceptional performance in terms of colour and compactness. A major limitation of these displays is in the phase modulation technology. This is a continuous progression that no other technology can come close to, especially at the cost and compactness of these soft materials. Given more and more areas are using lasers as sources for visibility, sensing, characterisation or treatment, these novel devices are an ideal, cheap technology for integration. The ability of make these versatile structures through very simple procedures and yet still allow a total variety of different effects and enhancements take place is perhaps the core advantage of these materials and devices.
A significant hurdle in designing and developing these materials is the lack of a custom silicon backplane. Without a deep knowledge of the materials and their performance, it is very difficult to commit the significant resources required to designing a custom silicon backplane. Hence in this project we will avoid this major cost and target test structures which replicate the properties of an LCoS device without the expense. We have already had discussions with major backplane manufacturers such as Hamamatsu, AU Optronics, Jasper and HiMax. All four of these companies came back with the same response, that they would be very interested in such a material and would consider integrating it into their backplanes, but they would require a very definitive experimental demonstration of the materials first. Hence this is one of the key objectives of this project which will then lead on to the integration into a commercial LCoS device.
The impact of this proposed work will be both multidisciplinary as well as cover a variety of different output mechanisms. Figure A shows the mechanism behind delivering such revolutionary new materials across all three Universities. The combination of chemistry, physics and engineering is an essential mix which will help to guarantee success. The diagram in Figure A also demonstrates the materials design cycle which ensures a continuous flow of new materials and experimental feedback which is a vital aspect of this type of project. The academic route of publication in world open access leading journals will continue and the successfully optimised novel materials, devices and embodiments in applications will be filed as intellectual property. This approach allows both academic progressions in the field as well as the potential for industrial development. Examples of the success of these applications in the commercial world can already be seen through partnerships such as optical tweezing and the development of start-up companies such as Light Blue Optics.
The economic impact of this proposal is very significant as modern technology is placing an every increasing demand on different types of laser devices and systems. Recently we have seen LCoS based holograms move into commercial projection displays (both front and rear) with huge success, proving truly exceptional performance in terms of colour and compactness. A major limitation of these displays is in the phase modulation technology. This is a continuous progression that no other technology can come close to, especially at the cost and compactness of these soft materials. Given more and more areas are using lasers as sources for visibility, sensing, characterisation or treatment, these novel devices are an ideal, cheap technology for integration. The ability of make these versatile structures through very simple procedures and yet still allow a total variety of different effects and enhancements take place is perhaps the core advantage of these materials and devices.
A significant hurdle in designing and developing these materials is the lack of a custom silicon backplane. Without a deep knowledge of the materials and their performance, it is very difficult to commit the significant resources required to designing a custom silicon backplane. Hence in this project we will avoid this major cost and target test structures which replicate the properties of an LCoS device without the expense. We have already had discussions with major backplane manufacturers such as Hamamatsu, AU Optronics, Jasper and HiMax. All four of these companies came back with the same response, that they would be very interested in such a material and would consider integrating it into their backplanes, but they would require a very definitive experimental demonstration of the materials first. Hence this is one of the key objectives of this project which will then lead on to the integration into a commercial LCoS device.
People |
ORCID iD |
Timothy Wilkinson (Principal Investigator) |
Publications
Cheng KT
(2016)
Electrically Switchable and Permanently Stable Light Scattering Modes by Dynamic Fingerprint Chiral Textures.
in ACS applied materials & interfaces
Christopher P
(2020)
Improving performance of single-pass real-time holographic projection
in Optics Communications
Christopher P
(2019)
Predictive search algorithm for phase holography.
Christopher P
(2020)
Relative limitations of increasing the number of modulation levels in computer generated holography
in Optics Communications
Christopher P
(2020)
Sympathetic quantisation - A new approach to hologram quantisation
Christopher P
(2020)
Sympathetic quantisation - A new approach to hologram quantisation
in Optics Communications
Christopher P
(2020)
Holographic Predictive Search: Extending the scope
Christopher P
(2020)
Holographic Predictive Search: Extending the scope
in Optics Communications
Christopher P
(2020)
Improving performance of single-pass real-time holographic projection
Description | New materials for phase modulation and a new technique for low field addressed liquid crystal over silicon (LCOS) devices, subject to patent filings. A new material mixture has been synthesised in conjunction with the University of Hull and Oxford and has been demonstrated a groundbreaking new type of phase modulation material. A key property is its low temperature response which is remarkable given the structure of the material. Several new applications such as optical coherence tomography (OCT) , holographic projection and beam steering switches for wavelength agile optical networks, based on this material are also now being pursued as there could be significant benefits to the use of this new devices structure and material. |
Exploitation Route | We have engaged in high level discussions with several major LCoS manufacturers with this new development and they are now testing our materials for their own applications. there is a growing interest in sub millisecond phase modulators for use in holographic applications and this work will be a key step in it implementation. |
Sectors | Aerospace Defence and Marine Chemicals Digital/Communication/Information Technologies (including Software) Electronics Healthcare Manufacturing including Industrial Biotechology Security and Diplomacy Transport |
URL | http://www-g.eng.cam.ac.uk/CMMPE/Projects/LCDevices.html |
Description | Ongoing collaboration with several commercial partners to facilitate the next generation of of LCoS technology. Current work is with Hamamatsu, along with Panasonic and initial work with Jasper displays. Work has now been completed with 4DD Displays Ltd on experimental devices and recent project has been instigated with Huawei, however both have been impacted by lab shut-downs during the pandemic. There are also interested parties in Hong Kong who wish to license the technology and gain access to high speed phase devices and most recently Hong Kong startup company, Flexotiles, has been approached by Merck to make suitable flexoelectric LC mixtures. New devices have also been fabricated which are now being trialed in OCT systems as well as optical fibre wavelength agile networks. the main limitation to this research still remains the lack of a suitable analogue silicon backplane that can be used to modulate these new materials and effects. Initial discussions about designing such a backplane were started with Jasper, and Hamamatsu, but they have still not been convinced of the suitability of the end market for such modulators. Both Huawei and most recently Sony have also indicated that they are considering the possibility of designing a suitable backplane. Huawei are very interested in fast LCoS devices for their oprical network switches and have been developing their own technology in-house. They are interested in flexo-electric (along with blue phase) materials as a means of achieving sub-microsecond phase modulators, however they require a larger phase depth than has been demonstrated thus far. Work is ongoing to improve the potential pahse depth at high frame rates. |
First Year Of Impact | 2021 |
Sector | Chemicals,Construction,Digital/Communication/Information Technologies (including Software),Electronics,Healthcare,Leisure Activities, including Sports, Recreation and Tourism,Manufacturing, including Industrial Biotechology,Retail,Transport |
Impact Types | Societal Economic |
Description | Holographic beam shaping of high power lasers for additive manufacturing |
Amount | £362,362 (GBP) |
Funding ID | EP/T008369/1 |
Organisation | Engineering and Physical Sciences Research Council (EPSRC) |
Sector | Public |
Country | United Kingdom |
Start | 02/2020 |
End | 01/2023 |
Description | IMPACT ACCELERATION - High-speed phase modulation devices for optical coherence tomography (HP-OCT) |
Amount | £60,000 (GBP) |
Funding ID | RG90413 |
Organisation | University of Cambridge |
Sector | Academic/University |
Country | United Kingdom |
Start | 12/2018 |
End | 11/2020 |
Description | MERCK CASE Award |
Amount | £33,000 (GBP) |
Organisation | Merck |
Sector | Private |
Country | Germany |
Start | 09/2014 |
End | 09/2017 |
Title | Fells OE-360316 Data File 1.csv |
Description | Underlying data for figure 2 and subsequent figures. Experimentally measured tilt-angle, retardance and transmissivity over time for i) a poorly aligned and ii) a well aligned chiral nematic, flexoelectro-optic liquid crystal device. |
Type Of Material | Database/Collection of data |
Year Produced | 2019 |
Provided To Others? | Yes |
URL | https://opticapublishing.figshare.com/articles/dataset/Fells_OE-360316_Data_File_1_csv/7803461/1 |
Title | Fells OE-360316 Data File 1.csv |
Description | Underlying data for figure 2 and subsequent figures. Experimentally measured tilt-angle, retardance and transmissivity over time for i) a poorly aligned and ii) a well aligned chiral nematic, flexoelectro-optic liquid crystal device. |
Type Of Material | Database/Collection of data |
Year Produced | 2019 |
Provided To Others? | Yes |
URL | https://opticapublishing.figshare.com/articles/dataset/Fells_OE-360316_Data_File_1_csv/7803461 |
Title | Temporal analysis of flexo-coefficients |
Description | A new real-time technique developed in conjunction with the University of Oxford has allowed us to probe the liquid crystal parameter set the controls its modulation. This is an exciting new development that will change the way we view these often complex parameters as we can now analyse their performance as the modulation evolves in time. |
Type Of Material | Database/Collection of data |
Year Produced | 2017 |
Provided To Others? | No |
Impact | The data generation technique has already impacted on how we analyses the process of phase modulation. This will be a very valuable tool for companies who develop new liquid crystal materials such as Merck, Synthon and Dow Corning. |
Title | datafile1.csv |
Description | This Data file supports the publication "Dynamic phase measurement of fast liquid crystal phase modulators". It is the undetlying data for Fig. 3(a-b). |
Type Of Material | Database/Collection of data |
Year Produced | 2022 |
Provided To Others? | Yes |
URL | https://opticapublishing.figshare.com/articles/dataset/datafile1_csv/19545112/1 |
Title | datafile1.csv |
Description | This Data file supports the publication "Dynamic phase measurement of fast liquid crystal phase modulators". It is the undetlying data for Fig. 3(a-b). |
Type Of Material | Database/Collection of data |
Year Produced | 2022 |
Provided To Others? | Yes |
URL | https://opticapublishing.figshare.com/articles/dataset/datafile1_csv/19545112 |
Title | datafile10.csv |
Description | This Data file supports the publication "Dynamic phase measurement of fast liquid crystal phase modulators". It is the undetlying data for Fig. 10(a). |
Type Of Material | Database/Collection of data |
Year Produced | 2022 |
Provided To Others? | Yes |
URL | https://opticapublishing.figshare.com/articles/dataset/datafile10_csv/19545274/1 |
Title | datafile10.csv |
Description | This Data file supports the publication "Dynamic phase measurement of fast liquid crystal phase modulators". It is the undetlying data for Fig. 10(a). |
Type Of Material | Database/Collection of data |
Year Produced | 2022 |
Provided To Others? | Yes |
URL | https://opticapublishing.figshare.com/articles/dataset/datafile10_csv/19545274 |
Title | datafile11.csv |
Description | This Data file supports the publication "Dynamic phase measurement of fast liquid crystal phase modulators". It is the undetlying data for Fig. 10(b). |
Type Of Material | Database/Collection of data |
Year Produced | 2022 |
Provided To Others? | Yes |
URL | https://opticapublishing.figshare.com/articles/dataset/datafile11_csv/19545286/1 |
Title | datafile11.csv |
Description | This Data file supports the publication "Dynamic phase measurement of fast liquid crystal phase modulators". It is the undetlying data for Fig. 10(b). |
Type Of Material | Database/Collection of data |
Year Produced | 2022 |
Provided To Others? | Yes |
URL | https://opticapublishing.figshare.com/articles/dataset/datafile11_csv/19545286 |
Title | datafile12.csv |
Description | This Data file supports the publication "Dynamic phase measurement of fast liquid crystal phase modulators". It is the undetlying data for Fig. 11 (simulated data). |
Type Of Material | Database/Collection of data |
Year Produced | 2022 |
Provided To Others? | Yes |
URL | https://opticapublishing.figshare.com/articles/dataset/datafile12_csv/19545316/1 |
Title | datafile12.csv |
Description | This Data file supports the publication "Dynamic phase measurement of fast liquid crystal phase modulators". It is the undetlying data for Fig. 11 (simulated data). |
Type Of Material | Database/Collection of data |
Year Produced | 2022 |
Provided To Others? | Yes |
URL | https://opticapublishing.figshare.com/articles/dataset/datafile12_csv/19545316 |
Title | datafile13.csv |
Description | This Data file supports the publication "Dynamic phase measurement of fast liquid crystal phase modulators". It is the undetlying data for Fig. 11 (optical phased measurement data). |
Type Of Material | Database/Collection of data |
Year Produced | 2022 |
Provided To Others? | Yes |
URL | https://opticapublishing.figshare.com/articles/dataset/datafile13_csv/19545340 |
Title | datafile13.csv |
Description | This Data file supports the publication "Dynamic phase measurement of fast liquid crystal phase modulators". It is the undetlying data for Fig. 11 (optical phased measurement data). |
Type Of Material | Database/Collection of data |
Year Produced | 2022 |
Provided To Others? | Yes |
URL | https://opticapublishing.figshare.com/articles/dataset/datafile13_csv/19545340/1 |
Title | datafile2.csv |
Description | This Data file supports the publication "Dynamic phase measurement of fast liquid crystal phase modulators". It is the undetlying data for Fig. 3(c-e). |
Type Of Material | Database/Collection of data |
Year Produced | 2022 |
Provided To Others? | Yes |
URL | https://opticapublishing.figshare.com/articles/dataset/datafile2_csv/19545148/1 |
Title | datafile2.csv |
Description | This Data file supports the publication "Dynamic phase measurement of fast liquid crystal phase modulators". It is the undetlying data for Fig. 3(c-e). |
Type Of Material | Database/Collection of data |
Year Produced | 2022 |
Provided To Others? | Yes |
URL | https://opticapublishing.figshare.com/articles/dataset/datafile2_csv/19545148 |
Title | datafile3.csv |
Description | This Data file supports the publication "Dynamic phase measurement of fast liquid crystal phase modulators". It is the undetlying data for Fig. 3(f). |
Type Of Material | Database/Collection of data |
Year Produced | 2022 |
Provided To Others? | Yes |
URL | https://opticapublishing.figshare.com/articles/dataset/datafile3_csv/19545160 |
Title | datafile3.csv |
Description | This Data file supports the publication "Dynamic phase measurement of fast liquid crystal phase modulators". It is the undetlying data for Fig. 3(f). |
Type Of Material | Database/Collection of data |
Year Produced | 2022 |
Provided To Others? | Yes |
URL | https://opticapublishing.figshare.com/articles/dataset/datafile3_csv/19545160/1 |
Title | datafile4.csv |
Description | This Data file supports the publication "Dynamic phase measurement of fast liquid crystal phase modulators". It is the undetlying data for Fig. 5(a-b). |
Type Of Material | Database/Collection of data |
Year Produced | 2022 |
Provided To Others? | Yes |
URL | https://opticapublishing.figshare.com/articles/dataset/datafile4_csv/19545175/1 |
Title | datafile4.csv |
Description | This Data file supports the publication "Dynamic phase measurement of fast liquid crystal phase modulators". It is the undetlying data for Fig. 5(a-b). |
Type Of Material | Database/Collection of data |
Year Produced | 2022 |
Provided To Others? | Yes |
URL | https://opticapublishing.figshare.com/articles/dataset/datafile4_csv/19545175 |
Title | datafile5.csv |
Description | This Data file supports the publication "Dynamic phase measurement of fast liquid crystal phase modulators". It is the undetlying data for Fig. 5(c-d). |
Type Of Material | Database/Collection of data |
Year Produced | 2022 |
Provided To Others? | Yes |
URL | https://opticapublishing.figshare.com/articles/dataset/datafile5_csv/19545193 |
Title | datafile5.csv |
Description | This Data file supports the publication "Dynamic phase measurement of fast liquid crystal phase modulators". It is the undetlying data for Fig. 5(c-d). |
Type Of Material | Database/Collection of data |
Year Produced | 2022 |
Provided To Others? | Yes |
URL | https://opticapublishing.figshare.com/articles/dataset/datafile5_csv/19545193/1 |
Title | datafile6.csv |
Description | This Data file supports the publication "Dynamic phase measurement of fast liquid crystal phase modulators". It is the undetlying data for Fig. 6. |
Type Of Material | Database/Collection of data |
Year Produced | 2022 |
Provided To Others? | Yes |
URL | https://opticapublishing.figshare.com/articles/dataset/datafile6_csv/19545208 |
Title | datafile6.csv |
Description | This Data file supports the publication "Dynamic phase measurement of fast liquid crystal phase modulators". It is the undetlying data for Fig. 6. |
Type Of Material | Database/Collection of data |
Year Produced | 2022 |
Provided To Others? | Yes |
URL | https://opticapublishing.figshare.com/articles/dataset/datafile6_csv/19545208/1 |
Title | datafile7.csv |
Description | This Data file supports the publication "Dynamic phase measurement of fast liquid crystal phase modulators". It is the undetlying data for Fig. 7. |
Type Of Material | Database/Collection of data |
Year Produced | 2022 |
Provided To Others? | Yes |
URL | https://opticapublishing.figshare.com/articles/dataset/datafile7_csv/19545226/1 |
Title | datafile7.csv |
Description | This Data file supports the publication "Dynamic phase measurement of fast liquid crystal phase modulators". It is the undetlying data for Fig. 7. |
Type Of Material | Database/Collection of data |
Year Produced | 2022 |
Provided To Others? | Yes |
URL | https://opticapublishing.figshare.com/articles/dataset/datafile7_csv/19545226 |
Title | datafile8.csv |
Description | This Data file supports the publication "Dynamic phase measurement of fast liquid crystal phase modulators". It is the undetlying data for Fig. 8. |
Type Of Material | Database/Collection of data |
Year Produced | 2022 |
Provided To Others? | Yes |
URL | https://opticapublishing.figshare.com/articles/dataset/datafile8_csv/19545238 |
Title | datafile8.csv |
Description | This Data file supports the publication "Dynamic phase measurement of fast liquid crystal phase modulators". It is the undetlying data for Fig. 8. |
Type Of Material | Database/Collection of data |
Year Produced | 2022 |
Provided To Others? | Yes |
URL | https://opticapublishing.figshare.com/articles/dataset/datafile8_csv/19545238/1 |
Title | datafile9.csv |
Description | This Data file supports the publication "Dynamic phase measurement of fast liquid crystal phase modulators". It is the undetlying data for Fig. 9. |
Type Of Material | Database/Collection of data |
Year Produced | 2022 |
Provided To Others? | Yes |
URL | https://opticapublishing.figshare.com/articles/dataset/datafile9_csv/19545250/1 |
Title | datafile9.csv |
Description | This Data file supports the publication "Dynamic phase measurement of fast liquid crystal phase modulators". It is the undetlying data for Fig. 9. |
Type Of Material | Database/Collection of data |
Year Produced | 2022 |
Provided To Others? | Yes |
URL | https://opticapublishing.figshare.com/articles/dataset/datafile9_csv/19545250 |
Description | Collaboration with Sony on LCOS SLMs |
Organisation | SONY |
Country | Japan |
Sector | Private |
PI Contribution | We are investigating the feasibility of using our flexo material mixtures in Sony SLMs, discussions are at an early stage post pandemic. |
Collaborator Contribution | Current Sony SLM on loan to CMMPE group a Cambridge. we are also investigating the possibility of testing the newly developed Sony SLM at high laser powers as part of the additive manufacturing research. |
Impact | Nothing as yet, awaiting SLM and MTA |
Start Year | 2022 |
Description | Flexoelectric device fabrication for next generation phase modulators. |
Organisation | Huawei Technologies Research and Development UK Ltd |
Country | United Kingdom |
Sector | Private |
PI Contribution | Device fabrication for use in holographic switches in telecommunications networks with Huawei. This includes both ferroelectric and flexoelectric devices . |
Collaborator Contribution | Huawei have set up a feasibility study on the use of flexoelectric liquid crystals in the next generation of liquid crystal over silicon spatial light modulators for use in telecommunications networks. this includes the design and fabrication of a suitable; backplane for the devices which will be fabricated in Cambridge. |
Impact | none as yet, all work with Huawei has been suspended due to pandemic and politics with China. |
Start Year | 2020 |
Description | LC Cell fabrication |
Organisation | University of Oxford |
Department | Department of Zoology |
Country | United Kingdom |
Sector | Academic/University |
PI Contribution | LCOS cell fabrication techniques have been transferred to the group at Oxford by Dr Yip. |
Collaborator Contribution | Device characterisation and materials design |
Impact | Patent filing Mewburn ref: MJN/CP7253529 |
Start Year | 2016 |
Description | Merck Case award Shabeena Nosheen |
Organisation | Merck |
Country | Germany |
Sector | Private |
PI Contribution | Merck sponsored Case award for Shabeena Nosheen to work on novel phase modulators using flexoelectrics and blue phase materials. |
Collaborator Contribution | Access to the Chilworth labs and the research team plus annual Merck Case conference. Also materials and advice from their engineering team. |
Impact | Three Merck Case talks all very well received. |
Start Year | 2015 |
Description | Sample testing for FlexCos with Forth Dimension Displays |
Organisation | Forth Dimension Displays |
Country | United Kingdom |
Sector | Private |
PI Contribution | FDD are interested in a new silicon backplane spatial light modulator. The project was tasked to undertake a feasibility study to test flexo-electric liquid crystal phase modulation/. |
Collaborator Contribution | Testing of liquid crystal mixtures and samples for phase modulation. |
Impact | Feasibility study completed, results are commercially sensitive. New backplane nor possible and halted by Covid. |
Start Year | 2016 |
Title | LIQUID CRYSTAL DEVICES AND METHOD FOR MANUFACTURING LIQUID CRYSTAL DEVICES |
Description | The present invention relates to liquid crystal devices in which the liquid crystal has a uniform lying helix (ULH) structure. The invention also relates to methods for manufacturing such liquid crystal devices. |
IP Reference | GB1706367.8 |
Protection | Patent application published |
Year Protection Granted | 2017 |
Licensed | Commercial In Confidence |
Impact | Second filing and potential new product |
Title | Code 1.zip |
Description | This Code and Dataset supports the publication "Dynamic phase measurement of fast liquid crystal phase modulators".. The work reports an instrumentation system to measure optical phase using a heterodyne interferometer. A flexoelectro-optic liquid crystal phase modulator is used as the test device. Matlab scripts are provided to demodulate the data to recover the phase modulation. A set of data files are provided,which have been acquired from the measurement system using a Keysight U2331A data acquisition module. These data files relate to the figures and can be demodulated and plotted with the Matlab scripts provided. |
Type Of Technology | Software |
Year Produced | 2022 |
Open Source License? | Yes |
URL | https://opticapublishing.figshare.com/articles/software/Code_1_zip/19544722 |
Title | Code 1.zip |
Description | This Code and Dataset supports the publication "Dynamic phase measurement of fast liquid crystal phase modulators".. The work reports an instrumentation system to measure optical phase using a heterodyne interferometer. A flexoelectro-optic liquid crystal phase modulator is used as the test device. Matlab scripts are provided to demodulate the data to recover the phase modulation. A set of data files are provided,which have been acquired from the measurement system using a Keysight U2331A data acquisition module. These data files relate to the figures and can be demodulated and plotted with the Matlab scripts provided. |
Type Of Technology | Software |
Year Produced | 2022 |
Open Source License? | Yes |
URL | https://opticapublishing.figshare.com/articles/software/Code_1_zip/19544722/1 |
Description | Holographic Projection Displays: Beyond Star Wars |
Form Of Engagement Activity | A broadcast e.g. TV/radio/film/podcast (other than news/press) |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Public/other audiences |
Results and Impact | Talk given for the 2019 Cambridge Science Festival through the Jesus College Intellectual Forum. The talk was given to a live audience as well as broadcast via the College YouTube channel. |
Year(s) Of Engagement Activity | 2019 |
URL | https://www.youtube.com/watch?v=-nNjc5BLV90 |
Description | Open day talk o plasmonic holograms |
Form Of Engagement Activity | Participation in an open day or visit at my research institution |
Part Of Official Scheme? | No |
Geographic Reach | National |
Primary Audience | Public/other audiences |
Results and Impact | Plenary talk at the Cambridge University Engineering Department open day, which is open to the general public as well as students who attend both days. The same exercise has been repeated several times during college open days and access events as well. |
Year(s) Of Engagement Activity | 2016 |