Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Peter S. Whitney"'
Autor:
Peter S. Whitney, Ioan Bucsa, Bart Johnson, Seungbum Woo, Tim N. Ford, Jason Ensher, Ed Mallon, Michael Crawford
Publikováno v:
Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXV.
Low NEP balanced receivers generally do not result in better sensitivity in a shot-noise-limited swept source OCT system. However, there is an advantage if RIN is significant. A lower NEP, even in the shot-noise-limited case, does allow for lower ref
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f503e98e73063f5da4a7070b9a1d1308
https://doi.org/10.1117/12.2577854
https://doi.org/10.1117/12.2577854
Autor:
Walid A. Atia, Peter S. Whitney, Mark R. Malonson, Nate Kemp, Joey M. Jabbour, Bart Johnson, Mark E. Kuznetsov
Publikováno v:
Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXV.
Optical coherence tomography (OCT) can be an important diagnostic tool in optics R&D and manufacturing. We illustrate this with four applications. (1) Imaging of vibration modes of MEMS membranes. (2) Strain mapping of VCSEL chips. (3) Optical freque
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b2049073727ad1fc5e9b31fe105e665c
https://doi.org/10.1117/12.2577848
https://doi.org/10.1117/12.2577848
Autor:
Tilman Schmoll, Joey M. Jabbour, Rick A. Williams, Nate Kemp, Muzammil A. Arain, Seungbum Woo, Tim N. Ford, Bart Johnson, Peter S. Whitney, Walid A. Atia
Publikováno v:
Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXIV.
Side lobe artifacts on point spread functions can be traced back to (1) fringe visibility variation across the spectrum, (2) errors in sampling instances, and (3) window functions. We demonstrate signal processing methods for correcting for all three
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::056a9aaf885872064dee7368477d2ad4
https://doi.org/10.1117/12.2543082
https://doi.org/10.1117/12.2543082
Autor:
Seungbum Woo, Tim N. Ford, Nate Kemp, Peter S. Whitney, Joey M. Jabbour, Walid A. Atia, Carlos R . Melendez, Mark E. Kuznetsov, Bart Johnson, Ed Mallon
Publikováno v:
Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXIII.
A 1060 nm optically pumped tunable VCSEL was formed from an InGaAs/AlGaAs/GaAs half-VCSEL bonded to a MEMS movable mirror on a silicon substrate. The VCSEL was co-packaged in a 14-pin butterfly module with an 825 nm pump laser and a 1060 nm semicondu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f906d39c66c4c55757d16ed21695240
https://doi.org/10.1117/12.2510395
https://doi.org/10.1117/12.2510395
Publikováno v:
Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXIII.
MEMS tunable lasers are not inherently phase stable because Brownian motion and drive electronics noise make the starting wavelength of the sweep unstable with respect to the electrical sweep trigger. A typical solution to the problem is to use a fib
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b06a674ca700b87e1a10864a5085ae72
https://doi.org/10.1117/12.2508746
https://doi.org/10.1117/12.2508746
Autor:
Mark E. Kuznetsov, Nate Kemp, Dale C. Flanders, Bart Johnson, Peter S. Whitney, Walid Atia, Brian Goldberg
Publikováno v:
Optics express. 24(10)
A back-to-back comparison of a tunable narrow-band-filtered SLED (TSLED) and a swept laser are made for OCT applications. The two sources are similar in terms of sweep speed, tuning range and coherence length. A fundamental issue with a TSLED is that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::205ca18c26a525d6c5d3dce26eb13543
https://pubmed.ncbi.nlm.nih.gov/27409939
https://pubmed.ncbi.nlm.nih.gov/27409939
Autor:
Brian Goldberg, Nate Kemp, Peter S. Whitney, Bart Johnson, Mark E. Kuznetsov, Walid A. Atia, Dale C. Flanders
Publikováno v:
Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XX.
A back-to-back comparison of a tunable narrow-band SLED (TSLED) and a swept laser are made for OCT applications. Both are 1310 nm sources sweeping at 50 kHz over a 100 nm tuning range and have similar coherence lengths. The TSLED consists of a seed S
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d01972ed6107e670b343572e36ed7a5
https://doi.org/10.1117/12.2214468
https://doi.org/10.1117/12.2214468
Autor:
Bart Johnson, Mark E. Kuznetsov, Walid A. Atia, Peter S. Whitney, Dale C. Flanders, Brian Goldberg
Publikováno v:
Biomedical Optics Express. 8:1045
It has been shown theoretically and experimentally that short cavity swept lasers are passively mode locked. We develop a mathematical model of these lasers and the light field solutions are used to predict the coherence length and coherence revival
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::235591a2b2583887c76d242dcb968a8e
https://doi.org/10.1364/boe.8.001045
https://doi.org/10.1364/boe.8.001045
Publikováno v:
Journal of Applied Physics. 66:4941-4945
The excitation and quenching mechanism of intra‐4f‐shell luminescence of Yb ions incorporated in an InP host is discussed. The discussion is based on experimental results of photoluminescence excitation spectra and photoluminescence time‐decay
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::210fba921a37d0a1da08caa6bed1fdab
https://doi.org/10.1063/1.343765
https://doi.org/10.1063/1.343765
Publikováno v:
Journal of Applied Physics. 65:1257-1260
Temperature dependencies of linewidth and peak wavelength are studied for the intra‐4f‐shell photoluminescence and electroluminescence spectra of erbium ions incorporated in GaAs by metalorganic chemical vapor deposition. For both the photo‐ an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7781eaaa4c5d5ced9a6450c6a1ffc0bd
https://doi.org/10.1063/1.343019
https://doi.org/10.1063/1.343019