Zobrazeno 1 - 10
of 64
pro vyhledávání: '"R.D. Younger"'
Autor:
Brian F. Aull, R.D. Younger, Jonathan Frechette, E.K. Duerr, K. Alexander McIntosh, Daniel R. Schuette
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 24:1-10
Over the past 20 years, we have developed arrays of custom-fabricated silicon and InP Geiger-mode avalanche photodiode arrays, CMOS readout circuits to digitally count or time stamp single-photon detection events, and techniques to integrate these tw
Autor:
Brian F. Aull, R.D. Younger, K. Alexander McIntosh, Jonathan Frechette, Vyshi Suntharalingam, Daniel R. Schuette, E.K. Duerr
Publikováno v:
Optical Sensing, Imaging, and Photon Counting: From X-Rays to THz.
Over the past 20 years, we have developed arrays of custom-fabricated silicon and InP Geiger-mode avalanche photodiode arrays, CMOS readout circuits to digitally count or time stamp single-photon detection events, and techniques to integrate these tw
Autor:
Robert J. Bailey, K. A. McIntosh, Jonathan Frechette, Joseph P. Donnelly, William D. Goodhue, Albert C. Ruff, R.D. Younger, E.K. Duerr, J. G. MacDonald
Publikováno v:
2016 IEEE Photonics Conference (IPC).
Intra focal plane array(FPA) crosstalk is a primary development limiter of large, fine-pixel Geiger-mode avalanche photodiode (Gm-APD) arrays beyond 256×256 pixels. General analysis methods and results from MIT Lincoln Laboratory (MIT/LL) InP-based
Autor:
S.B. Ippolito, M. Selim Ünlü, A. Nickolas Vamivakas, Anna K. Swan, R.D. Younger, Ernest R. Behringer, Bennett B. Goldberg
Publikováno v:
American Journal of Physics. 76:758-768
Microscopes are natural objects of study in introductory and upper level courses that cover optics because they are used in most science and engineering disciplines. The solid immersion microscope has been developed to study a variety of physical sys
Autor:
Franz Busse, Bryan Edward Miller, Lorri Parker, Benjamin Karlson, Milford Estill, David Brigada, Chris Keck, Jason Biddle, Jonathan Tabb Sullivan, R.D. Younger, Bruce LeBlanc, David G Minster
Wind turbines have grown in size and capacity with today's average turbine having a power capacity of around 1.9 MW, reaching to heights of over 495 feet from ground to blade tip, and operating with speeds at the tip of the blade up to 200 knots. Whe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d85987ce8165e3ca70380afa0a524a1
https://doi.org/10.2172/1163088
https://doi.org/10.2172/1163088
Publikováno v:
Journal of Lightwave Technology. 21:3116-3124
Phase-encoded optical sampling allows radio-frequency and microwave signals to be directly down-converted and digitized with high linearity and greater than 60-dB (10-effective-bit) signal-to-noise ratio. Wide-band electrical signals can be processed
Autor:
R.C. Williamson, Gary E. Betts, J.C. Twichell, K.G. Ray, Frederick J. O'Donnell, J.L. Wasserman, Paul W. Juodawlkis, J.J. Hargreaves, R.D. Younger
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 49:1840-1853
Optically sampled analog-to-digital converters (ADCs) combine optical sampling with electronic quantization to enhance the performance of electronic ADCs. In this paper, we review the prior and current work in this field, and then describe our effort
Autor:
Scott Robertson, R.D. Younger
Publikováno v:
American Journal of Physics. 67:310-315
Coulomb crystals of charged liquid droplets have been created in a Paul trap at atmospheric pressure. The technique improves upon similar experiments with solid dust particles by having a controlled and reproducible charge-to-mass ratio. The charge-t
Autor:
Simon Verghese, R.D. Younger, J.E. Funk, Joseph W. Chludzinski, L.J. Mahoney, K. Alexander McIntosh, Douglas C. Oakley, Joseph P. Donnelly
Publikováno v:
Advanced Photon Counting Techniques III.
Arrays of photon-counting Geiger-mode avalanche photodiodes (APDs) sensitive to 1.06 and 1.55 Pm wavelengths and as large as 256 x 64 elements on 50 Pm pitch have been fabricated for defense applications. As array size, and element density increase,
Autor:
Simon Verghese, G.M. Smith, R.D. Younger, K. A. McIntosh, J.M. Mahan, Joseph P. Donnelly, J.E. Funk, J. D. Shelton, Michael A. Brattain, C. Sataline, David Chapman, Zong-Long Liau, Douglas C. Oakley, L.J. Mahoney
Publikováno v:
Advanced Photon Counting Techniques III.
Arrays of InP-based avalanche photodiodes operating at 1.06-μm wavelength in the Geiger mode have been fabricated in the 128x32 format. The arrays have been hermetically packaged with precision-aligned lenslet arrays, bump-bonded read-out integrated