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Demultiplexing illumination via low cost sensing and nanosecond coding

Achuta Kadambi, Ayush Bhandari, Refael Whyte, Adrian Dorrington, Ramesh Raskar
2014 2014 IEEE International Conference on Computational Photography (ICCP)  
While previous work on illumination multiplexing has exploited coding at millisecond intervals, we repurpose sensors that are ordinarily used in time of flight imaging to demultiplex via nanosecond coding  ...  Time of flight cameras are a low cost, consumer-oriented technology capable of acquiring range maps at 30 frames per second.  ...  In contrast to previous approaches this technique exploits low cost time of flight sensors which allow nanosecond coding within the millisecond exposure.  ... 
doi:10.1109/iccphot.2014.6831811 dblp:conf/iccp/KadambiBWDR14 fatcat:46voub6e65bpjbr5h2hrtwyp6m

Coded time of flight cameras

Achuta Kadambi, Refael Whyte, Ayush Bhandari, Lee Streeter, Christopher Barsi, Adrian Dorrington, Ramesh Raskar
2013 ACM Transactions on Graphics  
Our low cost prototype may lead to new insights regarding forward and inverse problems in light transport.  ...  Abstract Time of flight cameras produce real-time range maps at a relatively low cost using continuous wave amplitude modulation and demodulation.  ...  Sloan Research Fellowship and a DARPA Young Faculty Award.  ... 
doi:10.1145/2508363.2508428 fatcat:jp2cjmhjzze5rkepbvvsxtn5gm

2009 Index IEEE Photonics Technology Letters Vol. 21

2009 IEEE Photonics Technology Letters  
-C., Kim, H., and Chung, Y.  ...  ., and Janz, S., Compact High-Performance Multimode Interference Couplers in Silicon-on-Insulator; LPT Nov.1, 2009 1600-1602 Hamacher, M., see Kapsalis, A., LPT Nov.1, 2009 1618-1620 Hamamoto, K., see  ...  ., +, LPT March15, 2009 356-358 Adaptive Loading Algorithm Implemented in AMOOFDM for NG-PON System Integrating Cost-Effective and Low-Bandwidth Optical Devices. Duong, T.  ... 
doi:10.1109/lpt.2009.2037998 fatcat:n34coz3rhzgu3bb6aqflixvoay

Silicon Nitride in Silicon Photonics

Daniel J. Blumenthal, Rene Heideman, Douwe Geuzebroek, Arne Leinse, Chris Roeloffzen
2018 Proceedings of the IEEE  
that can reduce energy consumption, size and cost over today's digital electronic solutions.  ...  The availability of low-loss waveguides (<1 dB/m) that can handle high optical power can be engineered for linear and nonlinear optical functions, and that support a variety of passive and active building  ...  A Si 3 N 4 programmable optical lattice filter leverages the ability to fabricate many stages of low-loss discrete delays with tunable optical couplers, providing a low-power, low-cost alternative to high-bandwidth  ... 
doi:10.1109/jproc.2018.2861576 fatcat:ikktbkwxcfbcjkiit7tlxdzexi

2021 Index IEEE Photonics Journal Vol. 13

2021 IEEE Photonics Journal  
Article numbers are based on specified topic areas and corresponding codes associated with the publication.  ...  The primary entry includes the coauthors' names, the title of the paper or other item, and its location, specified by the publication abbreviation, year, month, and article number.  ...  Li, J., +, JPHOT April 2021 6900111 Ultra-Low Sampled and High Precision TDLAS Thermometry Via Artificial Neural Network.  ... 
doi:10.1109/jphot.2022.3149205 fatcat:xzfdp6eoijffzkqb7biyaptzua

Holographic data storage systems

L. Hesselink, S.S. Orlov, M.C. Bashaw
2004 Proceedings of the IEEE  
, and readout techniques suitable for conventional, phase conjugate, and associative search data retrieval.  ...  for control, signal encoding, and recovery.  ...  The authors would also like to thank the Japanese Science and Technology Program.  ... 
doi:10.1109/jproc.2004.831212 fatcat:bbbqgwehzjgzpgawzdpec54c6m

Holographic Data Storage Systems

L. Hesselink
1993 [1993] Digests of International Magnetics Conference  
, and readout techniques suitable for conventional, phase conjugate, and associative search data retrieval.  ...  for control, signal encoding, and recovery.  ...  The authors would also like to thank the Japanese Science and Technology Program.  ... 
doi:10.1109/intmag.1993.642135 fatcat:elzznbsqxbfplheoqghewp7tla

MEMS for Optical Functionality

S. Kim, G. Barbastathis, H.L. Tuller
2004 Journal of Electroceramics  
for optical MEMS research and commercialization.  ...  We present an overview of cases where a combination of these features has led to commercial successes by creating new optical functionalities, and discuss materials-related challenges and future trends  ...  optical sensing and imaging.  ... 
doi:10.1023/b:jecr.0000034007.73050.0b fatcat:bix3467lbvfqlgxglj5svcnlcq

Lidar: a new self-driving vehicle for introducing optics to broader engineering and non-engineering audiences

Corneliu I. Rablau, Anne-Sophie Poulin-Girard, Joseph A. Shaw
2019 Fifteenth Conference on Education and Training in Optics and Photonics: ETOP 2019  
demultiplexer modules.  ...  producing laser pulses a few nanoseconds long and with a high repetition rate.  ... 
doi:10.1117/12.2523863 fatcat:xnqk5h5j55hurbr2zzzj4uil4m

Breakthroughs in Photonics 2011

2012 IEEE Photonics Journal  
Kim and R.-H. Kim contributed equally in this paper.  ...  Unrau for their contribution in processing and measurement.  ...  nonreturn-to-zero (NRZ) coding and a 2 7 À 1 bit pattern length.  ... 
doi:10.1109/jphot.2012.2195206 fatcat:phyly4pmsrdtln3eyzrov4luti

Beyond solid-state lighting: Miniaturization, hybrid integration, and applications of GaN nano- and micro-LEDs

Hutomo Suryo Wasisto, Joan Daniel Prades, Jan Gülink, Andreas Waag
2019 Applied Physics Reviews  
The support of the epitaxy competence center (ec 2 ) and the collaboration with Osram Opto Semiconductors GmbH, Regensburg, Germany are gratefully acknowledged.  ...  (e) Configuration of a multicontrast smartphone microscope with color-coded LED illumination patterns. Reproduced with permission from Jung et al., Sci.  ...  All these developments and experiments have demonstrated the feasibility of integrating GaN micro-LED arrays in compact and low-cost systems to build noncontact and noninvasive micromanipulator system  ... 
doi:10.1063/1.5096322 fatcat:upt5kffpiba6hf5knalkcwgsya

Nonlinear Optical Responsive Molecular Switches [chapter]

Mahadevappa Y. Kariduraganavar, Radha V. Doddamani, Balachandar Waddar, Saidi Reddy Parne
2021 Nonlinear Optics - From Solitons to Similaritons  
The device fabrication of optical switches and their efficiency based on the optical switch, internal architecture, and substrate materials are described.  ...  In the end, applications of switches and future prospectus of designing new molecules with references are suitably discussed.  ...  These are the most dominant and promising switches in switching technology, available in 2D, 3D configurations as they possess advantages of good potential in high volume and with low cost with its compactness  ... 
doi:10.5772/intechopen.92675 fatcat:pfydz633znf73az42o7awkwxea

An in-Depth Survey of Visible Light Communication Based Positioning Systems

Trong-Hop Do, Myungsik Yoo
2016 Sensors  
More than 100 papers ranging from pioneering papers to the state-of-the-art in the field were collected and classified based on the positioning algorithms, the types of receivers, and the multiplexing  ...  In addition, current issues and research trends in VLC based positioning are discussed.  ...  A low cost indoor navigation system using LED lamps to transmit IDs to a PD attached on a smart phone was proposed in [29] .  ... 
doi:10.3390/s16050678 pmid:27187395 pmcid:PMC4883369 fatcat:nojissmcmfaydfjcisq4jeauw4

Femtosecond optical pulse shaping and processing

A.M. Weiner
1995 Progress in Quantum Electronics  
Even larger contrasts have been demonstrated by increasing the length of the code and by using low peak factor codes such as maximal length sequences (M sequences).(238) (  ...  repetition rates in the range of nanoseconds and several tens of MHz, respectively  ... 
doi:10.1016/0079-6727(94)00013-o fatcat:oclmlpue7rd2jekjrxwwlx3hw4

The Philosophy of PCM

B.M. Oliver, J.R. Pierce, C.E. Shannon
1948 Proceedings of the IRE  
Under certain conditions where the sampling clock and the signal are harmonically related, the quantization noise becomes correlated, and the energy is concentrated in the harmonics of the signalhowever  ...  You can compare the actual ADC SNR with the theoretical SNR and get an idea of how the ADC stacks up.  ...  ACKNOWLEDGEMENTS The author would like to thank Bonnie Baker of Microchip Technology and Alain Guery of Analog Devices for their thoughtful inputs to this article.  ... 
doi:10.1109/jrproc.1948.231941 fatcat:n5mzm7dp45cojmrmzpanr5zv2y
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