Zobrazeno 1 - 10
of 64
pro vyhledávání: '"L Hassine"'
Publikováno v:
Optics Communications. 283:2214-2223
A description of the chirp induced by direct modulated DFB laser is presented. Two approaches are considered: the first one is based on a resolution of laser rate equations; the second, on a simulation with a commercial software. We compare results o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b06b91535c8adc519db8827d1fbfd82
https://doi.org/10.1016/j.optcom.2010.01.050
https://doi.org/10.1016/j.optcom.2010.01.050
Publikováno v:
Optics Communications. 283:1880-1885
We study the effects of the semiconductor laser noise on the generated beat signal, in Coherent Optical Domain Reflectometry device. By using a general laser noise analytical model, based on Volterra non-linear treatment of laser rate equations, we f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9964830370de92c297bcc2fd9f4f87f
https://doi.org/10.1016/j.optcom.2009.12.049
https://doi.org/10.1016/j.optcom.2009.12.049
Publikováno v:
Materials Science and Engineering: C. 28:671-675
In this paper we present, shortly, a study of the chirp induced in direct modulated DFB laser. Our description of the chirp is based, first on analytical resolution of the rate equations, and second on a simulation of a heterodyne system with the Opt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ba962f287e83aa7476ed5d15602b6d4
https://doi.org/10.1016/j.msec.2007.10.067
https://doi.org/10.1016/j.msec.2007.10.067
Publikováno v:
Synthetic Metals. 145:129-134
Current–voltage and impedance spectroscopy measurements have been carried out on the indium-tin-oxide (ITO)/1,4-bix-(9-anthylvinyl)-benzene (AVB)/Al light emitting diode. The impedance dependence of bias and frequency is discussed in term of the pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a17cb79d69a730e7fc8f5ad40a8f41b
https://doi.org/10.1016/j.synthmet.2004.04.025
https://doi.org/10.1016/j.synthmet.2004.04.025
Autor:
Jean-Louis Fave, Samir Romdhane, Joseph Roussel, F. Marai, Habib Bouchriha, Mustapha Majdoub, L. Hassine
Publikováno v:
Synthetic Metals
Synthetic Metals, 2003, 139 (2), pp.245. ⟨10.1016/S0379-6779(03)00128-0⟩
Synthetic Metals, 2003, 139 (2), pp.245. ⟨10.1016/S0379-6779(03)00128-0⟩
UV-Vis absorption, photoluminescence (PL), and electroluminescence (EL) from heterostructure thin films made of 1,4-bis-(9-anthrylvinyl)-benzene (AVB) are investigated. UV-Vis absorption data are used to determine the band gap of the material which i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3230b13b6abdcdac35f36ab9c6b0c514
https://doi.org/10.1016/s0379-6779(03)00128-0
https://doi.org/10.1016/s0379-6779(03)00128-0
Publikováno v:
Synthetic Metals. 139:227-231
The aim of this paper is to resolve analytically the non-linear rate equations describing the time evolution of carriers in Al/6T/ITO photovoltaic cell when the device is excited by a Dirac impulse. This resolution is based on a recent Volterra serie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0358592255730c2ff30a0b80b853abb1
https://doi.org/10.1016/s0379-6779(03)00127-9
https://doi.org/10.1016/s0379-6779(03)00127-9
Publikováno v:
Organic Electronics. 4:1-8
Using Volterra series we resolve analytically the non-linear rate equations describing the time evolution of the charge carrier concentration in an Al/6T/ITO cell when the device is illuminated and charge carriers are uniformally generated in the bul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66779b60ac66542a5809c4c8b0f91eb4
https://doi.org/10.1016/s1566-1199(02)00065-4
https://doi.org/10.1016/s1566-1199(02)00065-4
Publikováno v:
Synthetic Metals. 132:117-122
We report investigations of current–voltage (I–V), capacitance–voltage (C–V) and impedance–frequency (Z–o)measurementsperformed on ITO/1,4-bis-(9-anthrylvinyl)-benzene (AVB)/Al light-emitting diodes under different bias conditions. These
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e65314c5eabc2b4e72cf488a22084ffc
https://doi.org/10.1016/s0379-6779(02)00201-1
https://doi.org/10.1016/s0379-6779(02)00201-1
Publikováno v:
Synthetic Metals. 131:23-30
Recombination light or the so called electroluminescence has been studied in anthracene crystal by measuring its spectrum; its dependence on applied voltage and its transient response. The effect of magnetic field on this electroluminescence was so i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4caea2db2afccff1d3dd235a045e4f0
https://doi.org/10.1016/s0379-6779(02)00122-4
https://doi.org/10.1016/s0379-6779(02)00122-4
Publikováno v:
Materials Science and Engineering: C. 21:255-258
Evidence for photovoltaic behaviour of sexithiophene sandwich cell is shown through I – V characterisation in dark and under illumination. Then transient measurements were performed under short laser pulse excitation. Transient photocurrent, which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b33b8f2e6ef4049217d7099aabf87dc
https://doi.org/10.1016/s0928-4931(02)00076-0
https://doi.org/10.1016/s0928-4931(02)00076-0