Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Hossin A. Abdeldayem"'
Publikováno v:
Thin Solid Films. 350:245-248
The nonlinear optical properties of metal-free phthalocyanine (MFPC) thin films were examined using the second harmonic at 532 nm from a pulsed Nd:YAG laser, and the cw He-Ne , and Ar+ lasers. The He-Ne laser transmission at fixed input intensity was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b2ef3a4bac7434708e65881740dd2fd8
https://doi.org/10.1016/s0040-6090(98)01432-1
https://doi.org/10.1016/s0040-6090(98)01432-1
Nonlinear optical parameters of 7', 7'-dicyano-7'-apo-β-carotene in hexane by self-action techniques
Autor:
William K. Witherow, Michael R. Wasielewski, Don O. Frazier, P. Chandra, M. C. George, Hossin Ahmed Abdeldayem, Putcha Venkateswarlu, Lowell D. Kispert, Wen Sheng
Publikováno v:
Optics Communications. 95:295-300
Quantitative measurements of the nonlinear refractive index coefficient ( n 2 and the third-order nonlinear susceptibility (χ (3) ) for a solution of 7',7'-dicyano-7'-apo-β-carotene (DCAC) in hexane have been measured at different concentrations. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::64a95154155deed6cdee0747a1148db2
https://doi.org/10.1016/0030-4018(93)90681-t
https://doi.org/10.1016/0030-4018(93)90681-t
Autor:
Kenji Matsushita, E. Gad, Donald O. Frazier, Partha P. Banerjee, Hossin Ahmed Abdeldayem, Deanna K. McMillen, Tracy Dean Hudson
Publikováno v:
Applied optics. 39(29)
We demonstrate a simple all-optical realization of programmable edge enhancement and edge-enhanced correlation using novel photorefractive polymers. We show that the higher non-Bragg order in a two-beam coupling scheme contains the edge enhancement o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a36acf8e41311dd8fea44a800622b9a3
https://pubmed.ncbi.nlm.nih.gov/18354530
https://pubmed.ncbi.nlm.nih.gov/18354530
Autor:
Zedric Teague, Sergey S. Sarkisov, Hossin Ahmed Abdeldayem, Donald O. Frazier, Putcha Venkateswarlu, Grigory Adamovsky
Publikováno v:
Journal of Applied Physics. 81:2889-2891
We report on the formation of a graded-index waveguide in a photocrosslinkable fluorinated polyimide upon its photodarkening with the spectral line 313 nm of a mercury arc lamp at exposures exceeding 5 J/cm2. Photodarkening prevents the UV radiation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9308d887c656f50c411e09e4838164c1
https://doi.org/10.1063/1.363948
https://doi.org/10.1063/1.363948
Autor:
Nickolai V. Kukhtarev, Tatiana V. Kukhtareva, Mekonen Bayssie, Tracy D. Hudson, William A. Friday, I. Shkolnikov, Hossin A. Abdeldayem, Benjamin G. Penn, Donald O. Frazier
Publikováno v:
Summaries of Papers Presented at the Lasers and Electro-Optics. CLEO '02. Technical Diges.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3c667ab8cab722247c3b7fc097e9393
https://doi.org/10.1109/cleo.2002.1034042
https://doi.org/10.1109/cleo.2002.1034042
Autor:
Margarita Correa, Curtis E. Banks, Donald O. Frazier, Anup Sharma, Alexander Leyderman, Hossin Ahmed Abdeldayem, Benjamin G. Penn
Publikováno v:
SPIE Proceedings.
We report the study of a Fabry-Perot electro-optical modulator using thin crystalline film NPP, and Crystalline LiNbO3. We are able to observe 14, and 60 percent degree of modulation. Measurements were carried using a standard lock-in amplifier with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5bb0b94df04e16ab6c28a58ee5c59ec1
https://doi.org/10.1117/12.473785
https://doi.org/10.1117/12.473785
Autor:
Donald O. Frazier, Benjamin G. Penn, Tatiana Kukhtareva, William K. Witherow, Nickolai V. Kukhtarev, Andrey V. Veniaminov, Hossin Ahmed Abdeldayem
Publikováno v:
SPIE Proceedings.
The volume holographic gratings in polymer materials are promising candidates for spectrally selective optical elements, dense data storage, optical communication, and spectral selective imaging. Recently new application of volume reflection-type gra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae3bf1c32c86a697876993975073005a
https://doi.org/10.1117/12.454000
https://doi.org/10.1117/12.454000
Publikováno v:
SPIE Proceedings.
Polydiacetylene derivative of 2-methyl-4-nitroaniline (PDAMNA) shows a picosecond switching property, which illustrated a partial all-optical picosecond NAND logic gate. The switching phenomenon was demonstrated by waveguiding two collinear beams at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::548f9c227abfd36ebb0530fc7c9b17a9
https://doi.org/10.1117/12.448255
https://doi.org/10.1117/12.448255
Autor:
Tatiana Kukhtareva, Hossin Ahmed Abdeldayem, Donald O. Frazier, Benjamin G. Penn, Nickolai V. Kukhtarev, Ruth D Jones
Publikováno v:
SPIE Proceedings.
We suggest to use modulation of distributed feedback in the volume reflection type diffractive periodic structures for the fast all-optical spatial-temporal light modulators. Different types of periodic structures are discussed: cholesteric liquid cr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bdd50fbbee2084f51b96e33a45fc51c5
https://doi.org/10.1117/12.391905
https://doi.org/10.1117/12.391905
Publikováno v:
SPIE Proceedings.
Recently, we have demonstrated a picosecond all-optical switch, which also functions as a partial all-optical NAND logic gate using a novel polydiacetylene that is synthesized in our laboratory. The nonlinear optical properties of the polydiacetylene
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06bfd6fbee8678a2b51d0ca4a307513f
https://doi.org/10.1117/12.419799
https://doi.org/10.1117/12.419799