Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Lawrence C. West"'
Autor:
Lawrence C. West, Gregory N. Henderson, Thomas K. Gaylord, Elias N. Glytsis, E. Anemogiannis, Moses T. Asom, Charles W. Roberts
Publikováno v:
Microelectronics Journal. 24:805-816
Given two energy states (levels) in a quantum well formed by two potential barriers of finite thickness, elementary quantum mechanics tells us that the lower energy state is more tightly bound than the upper state. This produces a longer spatial conf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27c9c45940c13d1e2dd76846ee693de9
https://doi.org/10.1016/0026-2692(93)90079-t
https://doi.org/10.1016/0026-2692(93)90079-t
Publikováno v:
Integrated Photonics Research.
Coupling to compact waveguides can have improved efficiency with use of a grating with non uniform teeth. A combined numerical and mathematical technique for designing this coupler and Finite Element Method results is presented. This paper is a prepr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee40d427569dd6a173bfca113cb0ac12
https://doi.org/10.1364/ipr.1994.fh7
https://doi.org/10.1364/ipr.1994.fh7
Autor:
Madan Dubey, Emil C. Piscani, Melanie W. Cole, R. T. Lareau, Kenneth A. Jones, Lawrence C. West, Charles W. Roberts
Publikováno v:
Applied Physics Letters. 69:556-558
The Fourier transform infrared absorption spectrum for the range of 500–4000 cm−1 wave numbers was measured for several Ge films deposited on GaAs using ultrahigh vacuum e‐beam deposition at various substrate temperatures ranging from room temp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e98fc1325bcc959fac6e617313471059
https://doi.org/10.1063/1.117785
https://doi.org/10.1063/1.117785
Autor:
Moses T. Asom, Charles W. Roberts, Elias N. Glytsis, Gregory N. Henderson, Thomas K. Gaylord, Lawrence C. West
Publikováno v:
Applied Physics Letters. 62:1432-1434
An asymmetric semiconductor electron wave Fabry–Perot interference filter has been designed with two above‐barrier quasibound states for optical transitions. The upper state was designed to have a spatial confinement lifetime greater than three t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f51d7aab096293e72d65e7924d6e6779
https://doi.org/10.1063/1.108651
https://doi.org/10.1063/1.108651
Publikováno v:
Applied Physics Letters. 57:366-368
Recently, a new type of intersubband transition in GaAs quantum wells was observed by West and Eglash [1,2]. This transition differed from previous intersubband transitions [3] in that it had a direct, fully allowed, dipole between the envelope wavef
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::acaadbe3082d830058caef9b9ddb7f40
https://doi.org/10.1063/1.103693
https://doi.org/10.1063/1.103693
Autor:
A.M. Jones, William Choi, James J. Coleman, P.D. Dapkus, Charles W. Roberts, Jack Jewell, David W. Lin, Stan E. Swirhun, Aaron E. Bond, Lawrence C. West
Publikováno v:
SPIE Proceedings.
Vertical-cavity surface-emitting lasers (VCSELs) emitting in the 1530-1565 nm region of flat gain in Er-doped fibers offer the potential for low-cost transmitters for wavelength division multiplexing (WDM). Methods are described to produce precisely-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32df83bc892fd177386776dd0e5fab8d
https://doi.org/10.1117/12.300922
https://doi.org/10.1117/12.300922
A high speed modulator at low voltage is created in the mid-infrared at 10 micrometer wavelengths by using field-induced absorption on otherwise forbidden intersubband transitions. The physical effects could scale to 1.5 micrometer wavelength light.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0984b5c3b44dc14dcdfb67563d80d0a
https://doi.org/10.21236/ada312586
https://doi.org/10.21236/ada312586
Autor:
Charles W. Roberts, Emil C. Piscani, Lawrence C. West, George F. McLane, Madan Dubey, Kenneth A. Jones
Publikováno v:
SPIE Proceedings.
Optics has the fundamental capability of dramatically improving computer performance via the reduction of capacitance for intrinsic high bandwidth communications and low power usage. Yet optical devices have not displaced silicon VLSI in any measure
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3a7997d9692ed9e37740ca321ad35db
https://doi.org/10.1117/12.236921
https://doi.org/10.1117/12.236921
Autor:
Emil C. Piscani, R. T. Lareau, Kenneth A. Jones, Melanie W. Cole, Madan Dubey, Lawrence C. West, Charles W. Roberts
Publikováno v:
SPIE Proceedings.
The Fourier Transform Infrared (FTIR) absorption spectrum for the range of 500 to 4000 cm -1 wavenumbers was measured for several Ge films deposited on GaAs using ultra high vacuum E-beam deposition at various substrate temperatures ranging from room
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd81a656b87cbdd9692a928db7da1c13
https://doi.org/10.1117/12.229956
https://doi.org/10.1117/12.229956
Autor:
Kenneth A. Jones, Charles W. Roberts, George F. McLane, Emil C. Piscani, Madan Dubey, Lawrence C. West
Publikováno v:
SPIE Proceedings.
A high speed modulator at low voltage is created in the mid-infrared at 10 micrometers wavelengths by using field-induced absorption on otherwise forbidden intersubband transitions. The physical effects could scale to 1.5 micrometers wavelength light
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a0b8705a2fce647d1cf5b736ea8855a
https://doi.org/10.1117/12.229959
https://doi.org/10.1117/12.229959