Zobrazeno 1 - 10
of 20
pro vyhledávání: '"K. W. DeLong"'
Publikováno v:
Physics Letters A. 181:135-141
We present a simple formula for estimating the location of a self-trapping transition for a discrete nonlinear Schrodinger equation. We test our formula numerically and against results from past analytical and numerical investigations of related mode
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c19cdca19f203a6a488849ec06be316
https://doi.org/10.1016/0375-9601(93)90910-r
https://doi.org/10.1016/0375-9601(93)90910-r
Publikováno v:
Optics letters. 14(20)
Two-photon absorption can place a fundamental limitation on waveguide all-optical switching devices. We have derived a general criterion to describe this limitation that must be satisfied by all materials. As a specific example, we have experimentall
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9f158ade7b57ae5d437af955ea26d4d
https://pubmed.ncbi.nlm.nih.gov/19753081
https://pubmed.ncbi.nlm.nih.gov/19753081
Publikováno v:
Applied Physics Letters. 56:1394-1396
We show that color center induced absorption can mimic two‐photon absorption, and may limit all‐optical switching, even for very short pulses. Two‐photon and color center induced absorption are measured in a lead glass fiber.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0267ffb4b2553678ecf176bd565dc637
https://doi.org/10.1063/1.102478
https://doi.org/10.1063/1.102478
Publikováno v:
Springer Series in Chemical Physics ISBN: 9783642803161
Summary form only given. Frequency-resolved optical grating (FROG) based on polarization-gate (PG FROG) and second-harmonic generation (SHG FROG) have been used successfully to characterize ultrashort optical pulses from the infrared to the ultraviol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c1bf733f91d31cb2b20bad26c721b07
https://doi.org/10.1007/978-3-642-80314-7_68
https://doi.org/10.1007/978-3-642-80314-7_68
Publikováno v:
Ultrafast Phenomena.
Recently, we developed a simple and general technique, which we call Frequency-Resolved Optical Gating (FROG), that succeeds in measuring the full intensity and phase evolution of an individual, arbitrary ultrashort pulse.1-3 In brief, FROG involves
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c3b9aea44eb27fa95f1f397603477ea
https://doi.org/10.1364/up.1994.mc.2
https://doi.org/10.1364/up.1994.mc.2
Publikováno v:
Springer Series in Chemical Physics ISBN: 9783642851780
Springer Series in Chemical Physics
Springer Series in Chemical Physics
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b30a7147cc8aff3f6bbec1d4a8fcaef
https://doi.org/10.1007/978-3-642-85176-6_40
https://doi.org/10.1007/978-3-642-85176-6_40
Publikováno v:
Physical review. A, Atomic, molecular, and optical physics. 48(5)
We partition the perturbation phase space in the three-element discrete nonlinear Schr\"odinger equation into symmetric and antisymmetric subspaces. We then show that chaotic motion in the neighborhood of symmetric trajectories is confined to the ant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::229de8246a5bfc342517a8c940980cd9
https://pubmed.ncbi.nlm.nih.gov/9910059
https://pubmed.ncbi.nlm.nih.gov/9910059
Publikováno v:
Optical Society of America Annual Meeting.
We report what we believe to be the first observation of coherent transient absorption changes in glasses doped with quantum dots of CdS0.12Se0.88. These observations were made at room temperature with on-resonant laser pumping. We observe a transien
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2546cfbfffe9487bbe7a67bcbb029ca9
https://doi.org/10.1364/oam.1991.wt4
https://doi.org/10.1364/oam.1991.wt4
Publikováno v:
Integrated Photonics Research.
We calculate the dispersion of a two-photon figure of merit for all-optical switching, and show that in semiconductors operation below the two-photon bandgap is desirable. We present measurements of two-photon absorption in titanium doped and lead gl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b8e58a70dfe614e2f39ae80a3968e16
https://doi.org/10.1364/ipr.1990.tuf2
https://doi.org/10.1364/ipr.1990.tuf2
Autor:
G. I. Stegeman, K. W. DeLong
Publikováno v:
Applied Physics Letters. 57:2063-2064
The dispersion of a parameter quantifying the effects of two‐photon absorption on all‐optical waveguide switching devices is evaluated for the case of semiconductors in a two band model. Serious limitations are predicted based on the nonresonant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6117c8445834bffba2123dab3e9b7353
https://doi.org/10.1063/1.103941
https://doi.org/10.1063/1.103941