Zobrazeno 1 - 10
of 37
pro vyhledávání: '"T.C. Kleckner"'
Publikováno v:
IEEE Journal of Quantum Electronics. 42:280-286
We report on the large modulation of the optical properties of a 14:14 monolayer GaAs-AlAs superlattice waveguide following quantum-well intermixing. Low-temperature photoluminescence measurements illustrate a large 169-meV differential blue-shift ob
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dbbbe2459f421461d32327fbaa062a2e
https://doi.org/10.1109/jqe.2005.864155
https://doi.org/10.1109/jqe.2005.864155
Autor:
H. M. van Driel, J. P. Mondia, C. De Angelis, J.S. Aitchison, S. Linden, H. W. Tan, Daniele Modotto, T.C. Kleckner, Andrea Locatelli, Roberto Morandotti, Colin Stanley
Publikováno v:
Optics Communications. 249:201-208
We measured the self-phase modulation spectra at the output of deep-etched AlGaAs waveguides. The light source was an OPO laser system providing 250 fs long pulses, at wavelengths around 1520 nm, with a peak power as high as 1 kW. FROG measurements o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0816675b781f21baebf9690c3fe5d24d
https://doi.org/10.1016/j.optcom.2005.01.023
https://doi.org/10.1016/j.optcom.2005.01.023
Publikováno v:
IEEE Transactions on Electron Devices. 44:1851-1856
Analytical expressions for the tunnel current in abrupt semiconductor heterojunctions are derived. These expressions, which give results in good agreement with numerical calculations, should prove helpful in the construction of compact models for dev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e44dc9e52064e6d2a3247bf5b8503ef
https://doi.org/10.1109/16.641352
https://doi.org/10.1109/16.641352
Publikováno v:
IEEE Transactions on Electron Devices. 48:1477-1479
We present a study of thermal resistance in trench-isolated Si/SiGe heterojunction bipolar transistors (HBTs), using a technique based on isothermal collector current measurement. Measured thermal resistance is in good agreement with a realistic thre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1f094d31690aba821c7855447cf1c4f
https://doi.org/10.1109/16.930671
https://doi.org/10.1109/16.930671
Publikováno v:
Journal of Applied Physics. 89:4195-4197
We have extended an experimental technique to measure thermal resistance by pulsed current–voltage measurements to small bipolar transistors with thermal time constants of several hundred nanoseconds. Results for a 3×3 μm2 AlGaAs/GaAs heterojunct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d94984ac1e01258cf9f87a0523bde8ee
https://doi.org/10.1063/1.1352672
https://doi.org/10.1063/1.1352672
Autor:
Colin Stanley, Majid Ebrahim-Zadeh, David C. Hutchings, John M. Arnold, Konstantinos Moutzouris, J.S. Aitchison, A.C. Bryce, Christian T. A. Brown, A. Saher Helmy, John H. Marsh, T.C. Kleckner
Publikováno v:
ResearcherID
Scopus-Elsevier
Scopus-Elsevier
We report the observation of second-harmonic generation by type I quasi phase matching in a GaAs-AlAs superlattice waveguide. Quasi phase matching was achieved through modulation of the nonlinear coefficient chi((2))(zxy), which we realized by period
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9927510eee9ea7e6abcfc5ca9b4227c2
https://pubmed.ncbi.nlm.nih.gov/18066220
https://pubmed.ncbi.nlm.nih.gov/18066220
Autor:
C. De Angelis, H. M. van Driel, Andrea Locatelli, Daniele Modotto, Roberto Morandotti, J. P. Mondia, Colin Stanley, S. Linden, T.C. Kleckner, J.S. Aitchison
One-dimensional (1-D) deep-etched gratings on a specially grown AlGaAs wafer were designed and fabricated. The gratings were fabricated using state-of-the-art electron beam lithography and high-aspect-ratio reactive ion etching (RIE) in order to achi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::52985c9f143765b730dbbd185f88df95
http://hdl.handle.net/11379/29166
http://hdl.handle.net/11379/29166
Autor:
Colin Stanley, J.S. Aitchison, T.C. Kleckner, D. Modotto, S. Linden, Roberto Morandotti, Andrea Locatelli, J. P. Mondia, H. M. van Driel, C. De Angelis
In this letter, we investigate the nonlinear transmission properties of a one-dimensional micro-structured AlGaAs waveguide with a defect in the middle of a deep-etched Bragg grating. The transmitted spectrum depends on the spectral position of the i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad4ef4f87f13d89641eff965d03d1dd5
http://hdl.handle.net/11379/28740
http://hdl.handle.net/11379/28740
Autor:
J.R. Long, Tom J. Smy, C. Reimer, Hai Tran, D.J. Walkey, T.C. Kleckner, M.K. Jackson, Michael Schroter, D. Marchesan
Publikováno v:
Proceedings of the 1999 Bipolar/BiCMOS Circuits and Technology Meeting (Cat. No.99CH37024).
A new thermal dissipation mechanism in small geometry trench isolated devices is demonstrated through measurement and simulation. Limitations on the extraction and performance of single and double exponential transient thermal models are illustrated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::317d2db2b33225cb8868a2be94367d77
https://doi.org/10.1109/bipol.1999.803535
https://doi.org/10.1109/bipol.1999.803535
Autor:
J.P. Landesman, Christian T. A. Brown, Konstantinos Moutzouris, T.C. Kleckner, David C. Hutchings, S.G. Ayling, A.C. Bryce, P. Martin, Majid Ebrahim-Zadeh, John H. Marsh, Amr S. Helmy, J.S. Aitchison
Publikováno v:
LEOS 2000. 2000 IEEE Annual Meeting Conference Proceedings. 13th Annual Meeting. IEEE Lasers and Electro-Optics Society 2000 Annual Meeting (Cat. No.00CH37080).
Most of the studies carried out to date on the spatial selectively of the quantum well intermixing process have involved characterising either large intermixed areas, or sub 1 /spl mu/m features for 1D and 0D confinement potentials. Features that lie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f394a14066fba4c7c2528c42f8787fd
https://doi.org/10.1109/leos.2000.894052
https://doi.org/10.1109/leos.2000.894052