Zobrazeno 1 - 10
of 59
pro vyhledávání: '"R S, Grant"'
Autor:
R. S. Grant, S. K. Murad, Michael Graham Burt, Caleb Smith, Thomas F. Krauss, R.M. De La Rue, B. Vogele, C. D. W. Wilkinson
Publikováno v:
Microelectronic Engineering. 35:29-32
The fabrication and characterisation of two-dimensional photonic microstructures with a period of 190 nm exhibiting clear photonic bandgap effects is reported. We show that structures with near-perfect sixfold rotational symmetry are produced by elec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5cdc4b4f90095f819c52b91c6ed43a37
https://doi.org/10.1016/s0167-9317(96)00127-x
https://doi.org/10.1016/s0167-9317(96)00127-x
Autor:
R. S. Grant
Publikováno v:
Optical and Quantum Electronics. 28:1161-1173
Using the weakly guiding approximation, and with the assumption that the non-linearities are sufficiently weak so as not to change the transverse mode profile, perturbation theory is used to derive simple expressions for evaluating the modal, or effe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::298d33477bc61d2aaac31e8e67cd971c
https://doi.org/10.1007/bf00347646
https://doi.org/10.1007/bf00347646
Autor:
Wilson Sibbett, J.S. Aitchison, C.C. Yang, Alain Villeneuve, Gordon T. Kennedy, H.-H. Lin, Jin U. Kang, R. S. Grant, George I. Stegeman, K. Al-hemyari, Charles N. Ironside, Cheng-Hui Lin
Publikováno v:
Journal of Nonlinear Optical Physics & Materials. :347-371
Very few nonlinear optical materials are actually useful for high throughput all-optical devices. However, AlGaAs does satisfy all of the nonlinear optical figures of merit when used with photons of energy less than one half the semiconductor bandgap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12112ac0e931812d9d48f96576fe8e84
https://doi.org/10.1142/s0218199194000213
https://doi.org/10.1142/s0218199194000213
Publikováno v:
Applied Physics B Laser and Optics. 58:171-181
The techniques of coupled-cavity modelocking and self-modelocking in which intensity-induced nonlinear effects are exploited have been reviewed for broad-band gain media. Particular emphases have been placed upon the archetypical colour-centre and ti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::67baffc0b8719acb1e4a88827bd344ad
https://doi.org/10.1007/bf01081310
https://doi.org/10.1007/bf01081310
Publikováno v:
Optics letters. 14(1)
A significant enhancement in the mode locking of a KCl:Tl color-center laser has been observed when a length of optical fiber having positive group-velocity dispersion was incorporated within an external control cavity. Pulse durations of ~260 fsec w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38f1b16af3f80e2e69b8936229e1bf17
https://pubmed.ncbi.nlm.nih.gov/19749816
https://pubmed.ncbi.nlm.nih.gov/19749816
Autor:
Richard V. Penty, I. E. Day, P. A. Snow, R. S. Grant, M. A. Fisher, Ian H. White, Gordon T. Kennedy, D. A. O. Davies, Wilson Sibbett, Michael J. Adams
Publikováno v:
Applied Physics Letters. 65:2657-2659
The refractive nonlinearities due to bandfilling and the plasma effect in a multiquantum well buried heterostructure semiconductor waveguide under reverse bias are probed using self‐phase modulation techniques. Modeling of the self‐phase modulati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6fe97eb16440490bf818245a4f8db982
https://doi.org/10.1063/1.112594
https://doi.org/10.1063/1.112594
Autor:
Gordon T. Kennedy, D.J. Elton, Michael Andreja Fisher, D.A.O. Davies, R. S. Grant, P.D. Roberts, C.P. Seltzer, Michael J. Adams, Wilson Sibbett
Publikováno v:
Proceedings of LEOS '93.
To be able to exploit these effects in a device, and hence to be able to evaluate its performance, we wish to understand the implications of the choice of device construction on the size of nonlinearity as well as other parameters such as background
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bbdb033f7424a7b5331bc6c49e5561e4
https://doi.org/10.1109/leos.1993.379291
https://doi.org/10.1109/leos.1993.379291
Autor:
Wilson Sibbett, Gordon T. Kennedy, R. S. Grant, Mark Hopkinson, M. A. Pate, Andrew C. Walker, J.E. Ehrlich, D.T. Neilson
Publikováno v:
Applied Physics Letters. 63:1610-1612
We report measurements of quasi‐cw optical bistability in an InGaAs/InP multiple quantum well waveguide Fabry–Perot cavity at 1.47 μm wavelength. This operating wavelength is detuned from the band‐edge resonance by 0.07 μm, where an enhanced
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01aabcd22e3396e5f2badff436ccf8a1
https://doi.org/10.1063/1.110711
https://doi.org/10.1063/1.110711
Autor:
I. E. Day, P. A. Snow, Richard V. Penty, Hon Ki Tsang, Gordon T. Kennedy, Z. Su, R. S. Grant, Ian H. White, Wilson Sibbett
Publikováno v:
Applied Physics Letters. 62:1451-1453
We report on the observation of ultrafast (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f0012f69d1745ba0c6a7f1e7ccd73db
https://doi.org/10.1063/1.108655
https://doi.org/10.1063/1.108655
Autor:
Wilson Sibbett, Gordon T. Kennedy, J.E. Ehrlich, R. S. Grant, D.T. Neilson, Mark Hopkinson, Andrew C. Walker
Publikováno v:
Semiconductor Science and Technology. 8:307-309
Measurements have been made of the carrier lifetimes in MOCVD and MBE InGaAs quantum wells in a waveguide configuration using a CW probe and a picosecond pump at a wavelength of 1.5 mu m. Values in the range 4-7 ns were obtained for excitation densit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8cf92d1ef2fb2b45ff904316c61e03ff
https://doi.org/10.1088/0268-1242/8/2/025
https://doi.org/10.1088/0268-1242/8/2/025