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pro vyhledávání: '"R. Narevich"'
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Autor:
Ilya Vorobeichik, Y. Berlatzky, R. Narevich, G. Rosenblum, Edvardas Narevicius, I. Shtrichman
Publikováno v:
IEEE Journal of Quantum Electronics. 42:477-482
A novel high-performance optical tap with low wavelength-dependent loss(WDL), polarization-dependent loss (PDL), and excess loss is described. The tap is based on exciting a high-order mode by an abrupt change in the waveguide profile, and then tappi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce8df348582d293d010637804227d671
https://doi.org/10.1109/jqe.2006.872317
https://doi.org/10.1109/jqe.2006.872317
Autor:
Y. Berlatzky, G. Rosenblum, I. Shtrichman, Edvardas Narevicius, Ilya Vorobeichik, R. Narevich
Publikováno v:
Journal of Lightwave Technology. 23:1278-1283
A simple method for designing adiabatic transitions between straight and curved waveguides is presented. This method results in lower coupling from guided to radiating modes than conventional methods based on introducing an abrupt offset at the junct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be952a0a4e2181b27edeefe9e2c2f5a4
https://doi.org/10.1109/jlt.2004.840006
https://doi.org/10.1109/jlt.2004.840006
Autor:
R. Narevich, Nimrod Moiseyev
Publikováno v:
International Journal of Theoretical Physics. 42:2131-2143
Resonances are defined as the poles of the scattering matrix. The poles are associated with the complex eigenvalues of the Hamiltonian which are embedded in the lower half of the complex plane. The asymptotes of the corresponding eigenfunctions are e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72ae1096669e2617c933da97327918bc
https://doi.org/10.1023/b:ijtp.0000005951.03650.60
https://doi.org/10.1023/b:ijtp.0000005951.03650.60
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 9:578-582
Explicit formulas for the eigenstates and energy levels of a square quantum billiard with an Aharonov–Bohm flux line are found in quasiclassical approximation, that is, for high enough energy. There are localized states, never before noticed in thi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3062bda85825216359fa9b78554c6038
https://doi.org/10.1016/s1386-9477(00)00265-4
https://doi.org/10.1016/s1386-9477(00)00265-4
Publikováno v:
Foundations of Physics. 31:7-26
We discuss several problems in quasiclassical physics for which approximate solutions were recently obtained by a new method, and which can also be solved by novel versions of the Born–Oppenheimer approximation. These cases include the so-called bo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01b3ab25bc3003adf153710739cc24bf
https://doi.org/10.1023/a:1004153019473
https://doi.org/10.1023/a:1004153019473
Autor:
Dominique Spehner, R Narevich
Publikováno v:
Journal of Physics A: Mathematical and Theoretical
Journal of Physics A: Mathematical and Theoretical, IOP Publishing, 1999, 32, pp.L227
Journal of Physics A: Mathematical and Theoretical, IOP Publishing, 1999, 32, pp.L227
We compute the high orders of the Weyl expansion for the heat kernel of a circle billiard in the presence of a uniform and perpendicular magnetic field. It is shown, in accordance with a conjecture made in Narevich et al (1998 J. Phys. A: Math. Gen.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6be7cddb77eba2ccc7667e69783daaac
https://doi.org/10.1088/0305-4470/32/19/103
https://doi.org/10.1088/0305-4470/32/19/103
Autor:
E. Akkermans, R. Narevich
Publikováno v:
Philosophical Magazine B. 77:1097-1106
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c786d67d4364acdfba9e6995fd76219e
https://doi.org/10.1080/014186398258483
https://doi.org/10.1080/014186398258483
Autor:
R. Narevich, G. Heise
Publikováno v:
IEEE Photonics Technology Letters. 17:2116-2118
We propose a model for polarization response of Mach-Zehnder interferometer (MZI). Our model explains in particular the phase shift between two polarization states with low power applied to thermooptical heaters. We reproduce test results and, based
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34137dd6efa7c242ce6e992a03bb7de2
https://doi.org/10.1109/lpt.2005.854342
https://doi.org/10.1109/lpt.2005.854342
Publikováno v:
OFC/NFOEC 2008 - 2008 Conference on Optical Fiber Communication/National Fiber Optic Engineers Conference.
We demonstrate adiabatic wavelength insensitive 2×2 PLC coupler with less than 0.6 dB variation over 1260- 1630 nm range and better than 0.25 dB PDL. We use it to build process tolerant 2×32 splitter having excellent optical performance.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8883ca9310865f6a288c7010913718e7
https://doi.org/10.1109/ofc.2008.4528449
https://doi.org/10.1109/ofc.2008.4528449