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Autor:
Chris Phillips, Richard T. Harley, A.C. Tropper, R. Eccleston, Annette S. Plaut, G.P. Flinn, M.J. Snelling
Publikováno v:
Physical Review B. 44:11345-11352
The magnitude and sign of the effective magnetic splitting factor g* for conduction electrons in GaAs/AlxGa(1-x)As quantum wells have been determined as a function of well width down to 5 nm. The experimental method is based on combined measurements
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::383128e492da853618599861b5e1e343
https://doi.org/10.1103/physrevb.44.11345
https://doi.org/10.1103/physrevb.44.11345
Publikováno v:
Semiconductor Science and Technology. 5:533-537
Despite the fact that spectra of nuclear resonances provide a powerful microscopic probe of condensed matter, NMR techniques have not hitherto been applied to the study of semiconductor heterostructures. The reason is that only a tiny fraction of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0f862195a36e6e7d21eb993de5a886b
https://doi.org/10.1088/0268-1242/5/6/012
https://doi.org/10.1088/0268-1242/5/6/012
Autor:
N. Moore, S. Mailis, J. Hendricks, R.W. Eason, D.P. Shepherd, A.C. Tropper, Michael J. Damzen, M. Trew, G.J. Crofts
Publikováno v:
Technical Digest. Summaries of papers presented at the Conference on Lasers and Electro-Optics. Postconference Edition. CLEO '99. Conference on Lasers and Electro-Optics (IEEE Cat. No.99CH37013).
Summary form only given. Self-adaptive laser resonators formed by diffraction from a gain grating have shown considerable promise for correction of distortions in high average power laser systems as well as for spectral and temporal control of the la
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2859b8c269e0e398e809307fe0580dfb
https://doi.org/10.1109/cleo.1999.834572
https://doi.org/10.1109/cleo.1999.834572
Autor:
A.C. Tropper, A.I. Ferguson
Publikováno v:
Journal of Physics D: Applied Physics. 34
The idea of pulling together a Cluster of papers in celebration of the 60th birthday of Professor David Hanna FRS was inspired by his award of the European Physical Society Quantum Electronics Prize 2000 for applied aspects. The prize citation recogn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4283cdb54e56fe415dbfbe193c5241e
https://doi.org/10.1088/0022-3727/34/16/001
https://doi.org/10.1088/0022-3727/34/16/001
Publikováno v:
Journal of Luminescence. 45:218-220
We demonstrate use of a spatially selective optical pumping technique to investigate NMR in GaAs quantum wells. The method has previously been used to study bulk semiconductors but not lower dimensional systems. For this its sensitivity (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e5e21d2486954ffc870fb6ddf93db58
https://doi.org/10.1016/0022-2313(90)90150-a
https://doi.org/10.1016/0022-2313(90)90150-a
Publikováno v:
Journal of Luminescence. 45:208-210
Interband excitation of GaAs with circularly polarised light produces a spin-polarised population of photoexcited carriers. The equilibrium degree of spin polarisation under cw excitation depends on the balance of spin relaxation and recombination ra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9475783e572243009ecd89be4dcb66fc
https://doi.org/10.1016/0022-2313(90)90147-4
https://doi.org/10.1016/0022-2313(90)90147-4
Autor:
C.L. Bonner, C.T.A. Brown, D.P. Shepherd, W.A. Clarkson, R.D. Harris, A.C. Tropper, D.C. Hanna, B. Ferrand
Publikováno v:
Conference on Lasers and Electro-Optics-Europe.
There is a growing interest in using planar waveguides for high-power diode-pumped laser devices due to their geometrical compatibility with diode-bars and good thermal management capabilities. Here we report on our progress in constructing and chara
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3fb2ca6b408ed5219612d2f77084e6c3
https://doi.org/10.1364/cleo_europe.1998.ctub1
https://doi.org/10.1364/cleo_europe.1998.ctub1
The planar waveguide geometry is an attractive one for lasers [1] and amplifiers [2] since it offers some confinement of the pump and signal fields together with good power handling characteristics. We have demonstrated laser oscillation and amplific
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef8ae082249ec321fba361b16eca4989
https://eprints.soton.ac.uk/76934/
https://eprints.soton.ac.uk/76934/
Autor:
A. Rameix, C. Borel, B. Ferrand, C. Wyon, D.P. Shepherd, T.J. Warburton, A.C. Tropper, D.C. Hanna
Publikováno v:
Conference on Lasers and Electro-Optics Europe.
Liquid Phase Epitaxy (LPE) is a promising technique for producing planar waveguide lasers. This method has already achieved good results with Y3A15O12 (YAG) [1,2]. In this paper we report the growth and laser operation of layers of a new material: Y2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b51fe892cff09803d64a5863a023618c
https://doi.org/10.1364/cleo_europe.1996.cfd1
https://doi.org/10.1364/cleo_europe.1996.cfd1