Title :
Characterization of nonlinear absorption in phosphine-substituted bithiophenes
Author :
Pritchett, Timothy M. ; Wang, Jianwei ; Lawson, Christopher M. ; Zhao, Qun ; Gray, Gary M.
Author_Institution :
Res. Lab., AMSRD-ARL-SE-EM, U.S. Army, Adelphi, MD, USA
Abstract :
The two-photon absorption cross-sections of two novel derivatives of 5,5´-bis(diphenylphosphino)-2,2´-bithiophene have been measured using Z scans employing 27-ps pulses at multiple pulse energies, yielding values of 1500 plusmn 50 GM and 2830 plusmn 50 GM.
Keywords :
high-speed optical techniques; nonlinear optics; organic compounds; two-photon spectra; 5,5´-bis(diphenylphosphino)-2,2´-bithiophene; derivatives; nonlinear absorption; open-aperture Z scans; phosphine-substituted bithiophenes; picosecond laser pulses; two-photon absorption cross-sections; Chemical lasers; Electromagnetic wave absorption; Nonlinear optics; Optical materials; Optical pulses; Optical sensors; Organic materials; Pulse measurements; Semiconductor materials; Space vector pulse width modulation; (160.4890) Organic materials; (190.4710) Optical nonlinearities in organic materials;
Conference_Titel :
Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-869-8
Electronic_ISBN :
978-1-55752-869-8
