Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Eric G. Nickel"'
Autor:
Nansheng Tang, Robert W. Hellwarth, Larry R. Dalton, Charles W. Spangler, Joyce Laquindanum, Mingqian He, Eric G. Nickel
Publikováno v:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 240:17-23
Bis-anthracenyl and bis-thienyl polyenes have been synthesized using Wittig methodology. These polyenes can be oxidatively doped with SbCl5 to yield bipolaron-like charge states that can be cast as thin film composites. X (3) measurements performed b
Publikováno v:
ChemInform. 23
Several approaches have been suggested during the past few years for increasing third order nonlinearity in organic compounds. In general, these have focused on manipulation of the effective conjugation length of the pi-electron framework to maximize
Autor:
Fanqing Meng, Mikhail Drobizhev, Charles W. Spangler, Eric G. Nickel, Yuliya Dzenis, Aleksander Rebane, Aliaksandr Karotki, Mikalai Kruk
Publikováno v:
SPIE Proceedings.
Porphyrins and related molecules with strong two-photon absorption (TPA) are extremely called for because of several emerging applications, including 3D optical memory, high-resolution fluorescence microscopy and photodynamic therapy. In this paper w
Autor:
Aleksander Rebane, Mikalai Kruk, Mikhail Drobizhev, Aliaksandr Karotki, Nugzar Mamardashvili, Eric G. Nickel, Charles W. Spangler
Publikováno v:
SPIE Proceedings.
We study absolute cross section of simultaneous two-photon absorption (TPA) in a series of porphyrins and tetraazaporphyrins by 100-fs-duration pulses in two ranges of laser wavelength, from 1100 to 1500 nm and from 700 to 800 nm. The cross section i
Autor:
Mikhail Drobizhev, Charles W. Spangler, Aliaksandr Karotki, Eric G. Nickel, Mikalai Kruk, Aleksander Rebane
Publikováno v:
SPIE Proceedings.
Classical photodynamic therapy (PDT) has a drawback of limited penetration of visible light. It has been proposed that by utilizing two-photon absorption (TPA), where illumination is carried out at near-IR wavelengths falling into tissue transparency
Autor:
Roy F. Gratz, Rena Y. Yee, Andrew P. Chafin, Peter Zarris, Richard A. Hollins, John D. Stenger-Smith, Eric G. Nickel, Paul R. Ashley, Warren N. Herman, Geoffrey A. Lindsay, Melvin P. Nadler
Publikováno v:
SPIE Proceedings.
New thermally stable, spin-castable, electro-optic (EO) polymers designed for high frequency optical modulators are reported (the third generation accordion polymers). The softening temperature (the glass transition temperature) is about 240 degrees
Autor:
Andrew P. Chafin, John D. Stenger-Smith, Warren N. Herman, Lawrence H. Merwin, Eric G. Nickel, Rena Y. Yee, Geoffrey A. Lindsay, Richard A. Hollins
Publikováno v:
Nonlinear Optical Properties of Organic Materials IX.
Progress on second-order nonlinear optical polymers for high speed optical signal modulation is reported. New accordion polymers containing head-to-head backbone chromophores extended with a styryl-thienyl-vinyl linkage are described. The maximum abs
Autor:
Linda S. Sapochak, Larry R. Dalton, Charles W. Spangler, Eric G. Nickel, Friedrich P. Strohkendl, Malcolm R. McLean
Publikováno v:
MRS Proceedings. 277
Several ladder polymer systems, such as POL and PTL, have displayed large third-order optical nonlinearities. However, these polymers are insoluble in common organic solvents, and as such are not amenable to studies of substituent effects on the nonl
Publikováno v:
AIP Conference Proceedings.
The chemistry and physics associated with the development of conducting organic materials during the past decade has resulted in a great deal of speculation regarding their possible role as molecular wires in molecular switching. In typical conductin
Autor:
Charles W. Spangler, Eric G. Nickel
Publikováno v:
SPIE Proceedings.
(alpha) , (omega) -Bis(9-anthracenyl) polyenes containing 3, 4, 5, and 6 ene repeat units have been synthesized. These polyenes can be oxidized to extremely stable bipolaronic charge states in solution by SbCl5. There is significant shift in oscillat