Zobrazeno 1 - 10
of 90
pro vyhledávání: '"Peter W. E. Smith"'
Autor:
Edward H. Sargent, Larissa Levina, Peter W. E. Smith, S. Myrskog, Vlad Sukhovatkin, Sjoerd Hoogland, Emanuel Istrate
Publikováno v:
The Journal of Physical Chemistry B. 112:2757-2760
We report transient absorption saturation measurements on lead sulfide colloidal nanocrystals at the first and second exciton energies and fit the results to a model incorporating intraband and interband relaxation processes. We study in detail the A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5322144494b91d040024269a275bac56
https://doi.org/10.1021/jp076809g
https://doi.org/10.1021/jp076809g
Autor:
Philip J. Poole, Peter W. E. Smith, Thomas J. Rotter, Daniel Poitras, Mo Mojahedi, Andreas Stintz, J. Meier, J.S. Aitchison, C. Yang, A.J. Zilkie, Kevin J. Malloy, Pedro Barrios
Publikováno v:
IEEE Journal of Quantum Electronics. 43:982-991
We assess the influence of the degree of quantum confinement on the carrier recovery times in semiconductor optical amplifiers (SOAs) through an experimental comparative study of three amplifiers, one InAs-InGaAsP-InP quantum dot (0-D), one InAs-InAl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::45df7a6e77ffbb4a28fc993f1be854bc
https://doi.org/10.1109/jqe.2007.904474
https://doi.org/10.1109/jqe.2007.904474
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 10:1164-1170
We report on the systematic, broadband characterization of the third-order nonlinearities of the commonly used reference materials: sapphire, the lead-silica glass SF-59 and pure carbon disulfide CS/sub 2/. Using the z-scan technique with /spl sim/1-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9db91c61982f594e125b05607bd12969
https://doi.org/10.1109/jstqe.2004.836007
https://doi.org/10.1109/jstqe.2004.836007
Autor:
Peter W. E. Smith, D.J.F. Cooper
Publikováno v:
Journal of Lightwave Technology. 21:1612-1620
We describe a simple method for the wavelength measurement of optical signals that is easily capable of measuring a 1-nW average power optical signal with a wavelength resolution of 0.1 pm/Hz/sup 1/2/ while maintaining a large measurement range in ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5bbfd02fc7dd7e2b4f60a97104a6ec82
https://doi.org/10.1109/jlt.2003.814393
https://doi.org/10.1109/jlt.2003.814393
Publikováno v:
Optics Communications. 223:91-95
Fiber Bragg gratings are important components for a great number of applications including DWDM lightwave systems, fiber lasers, and sensors. A narrowband high-reflectivity response in a multimode fiber could have a dramatic impact on lightwave commu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a349b4bfe6cc21dd3b027f2a0e311c22
https://doi.org/10.1016/s0030-4018(03)01636-5
https://doi.org/10.1016/s0030-4018(03)01636-5
Autor:
Peter W. E. Smith, David J. F. Cooper
Publikováno v:
Measurement Science and Technology. 14:965-974
A new architecture for large-scale time multiplexing of fibre Bragg grating sensors (BGSs) is presented. Multiplexing of fibre BGSs often requires a trade-off between measurement performance and the number of sensors per fibre. Our technique utilizes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f9b12b7dd449f3a7515ccadeae5d543
https://doi.org/10.1088/0957-0233/14/7/309
https://doi.org/10.1088/0957-0233/14/7/309
Publikováno v:
Journal of Lightwave Technology. 19:646-654
The period and length of a fiber grating structure can be reconstructed from its corresponding complex reflection coefficient using time-frequency signal analysis based on Wigner-Ville and spectrogram distributions. We provide an experimental demonst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b235e9f4a1e74ef23ee8483f14c60b3
https://doi.org/10.1109/50.923477
https://doi.org/10.1109/50.923477
Publikováno v:
Optical and Quantum Electronics. 33:1055-1062
We demonstrated ultrafast all-optical switching, using an asymmetric Fabry-Perot device, based on bulk Be-doped InGaAsP grown by He-plasma-assisted molecular beam epitaxy. We achieved 5 ps switching window (l/e fall time) and a peak contrast ratio of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7104f5f43d7d3e65ba6873298128417e
https://doi.org/10.1023/a:1017520910902
https://doi.org/10.1023/a:1017520910902
Publikováno v:
Optics Communications. 185:487-492
We perform dual-wavelength pump‐probe measurements on InGaAsP grown by He-plasma-assisted molecular beam epitaxy with Be doping concentrations ranging from 0 to 6 10 18 cm ˇ3 . The material response times obtained vary from 1 to>70 ps depending on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e65f505ff7de3d50464bb76d345c55c
https://doi.org/10.1016/s0030-4018(00)01030-0
https://doi.org/10.1016/s0030-4018(00)01030-0
Autor:
Lawrence R. Chen, Peter W. E. Smith
Publikováno v:
Fiber and Integrated Optics. 19:423-437
The design and fabrication of chirped Moire fiber Bragg gratings (CMGs) are presented, which can be used in either (1) transmission as passband filters for providing wavelength selectivity in wavelength-division-multiplexed (WDM) systems or (2) refle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9339e9c7f6611c9b774833fcd83d6a02
https://doi.org/10.1080/014680300300001734
https://doi.org/10.1080/014680300300001734