Zobrazeno 1 - 10
of 82
pro vyhledávání: '"Sweeney, SJ"'
Publikováno v:
Optical Sensing and Detection II.
A simple multiple-angle light scattering system was developed for the differential measurement of particle concentrations in suspension even in high concentration where multiple scattering effects are significant based on size. The system combines mu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48bb32e4f99c2914329e01135523197b
https://doi.org/10.1117/12.922287
https://doi.org/10.1117/12.922287
We have investigated the threshold current Ith and differential quantum efficiency as the function of temperature in InGaAlAs/InP multiple quantum well (MQWs) buried heterostructure (BH) lasers. We find that the temperature sensitivity of Ith is due
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______305::9465850cd4c683c373fd1d30eff61226
https://surrey.eprints-hosting.org/733176/
https://surrey.eprints-hosting.org/733176/
We used high hydrostatic pressure techniques to understand the deteriorating temperature performance with decreasing wavelength of short wavelength quantum cascade lasers. Influence of inter-valley scattering and distribution of the electron wave fun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______305::ee6613ec8e25f061062ea9a3f4546d81
https://surrey.eprints-hosting.org/104831/
https://surrey.eprints-hosting.org/104831/
Semiconductor lasers with quantum dot (QD) based active regions have generated a huge amount of interest for applications including communications networks due to their anticipated superior physical properties due to three dimensional carrier confine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______305::ade71318609cc3a04f595cc30ab1d121
https://surrey.eprints-hosting.org/733175/
https://surrey.eprints-hosting.org/733175/
Autor:
Hild, K, Sweeney, SJ, Jin, SR, Healy, SB, O'Rellly, EP, Johnson, SR, Wang, J-B, Zhang, Y-H, Jantsch, W, Schaffler, F
Publikováno v:
AIP Conference Proceedings.
Using a combination of experimental and theoretical techniques, we investigated the band alignment and the carrier recombination processes occurring in GaAsSb/GaAs structures. We find that for Sb fractions ∼30%, the band alignment is slightly type
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dea9de2055afb4ac885ebcae51ff8b49
https://doi.org/10.1063/1.2730443
https://doi.org/10.1063/1.2730443
Autor:
Marko, IP, Andreev, AD, Sweeney, SJ, Adams, AR, Krebs, R, Deubert, S, Reithmaier, JP, Forchel, A, Menendez, J, VanDeWalle, CG
Publikováno v:
AIP Conference Proceedings.
Analysis of the temperature dependencies of the threshold current and of the unamplified spontaneous emission in 0.98‐μm and 1.3‐μm InAs/GaAs quantum dot lasers as well as high hydrostatic pressure studies show that the recombination and loss m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::efc170302a38d473de8f1e245d7ac22c
https://doi.org/10.1063/1.1994289
https://doi.org/10.1063/1.1994289
Using a combination of temperature and pressure dependence measurements, we investigate the relative importance of recombination processes in InGaAs‐based QW lasers. We find that radiative and Auger recombination are important in high quality InGaA
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::223ec632043d8ee8926b6147f9d0a8f6
https://surrey.eprints-hosting.org/733540/
https://surrey.eprints-hosting.org/733540/