Fluorescence spectrum of a blue-phase polydiacetylene obtained by probe saturation spectroscopy
作者： A. Yasuda , M. Yoshizawa , T. Kobayashi
DOI: 10.1016/0009-2614(93)80108-2
关键词:
摘要: Abstract The dependence of the transient difference transmission spectrum on probe-light intensity was investigated for a blue-phase polydiacetylene with side groups substituted urethanes. spectra stimulated emission and photoinduced absorption lowest 1 B u exciton were separately determined in polymer, which exhibits extremely weak fluorescence quantum efficiency −5 ultrashort lifetime 140 fs, by “probe saturation spectroscopy” newly proposed here. calculated from has peak near 1.9 eV is an approximate mirror image to stationary spectrum. relaxation time constant higher excited state m A g estimated be shorter than 50 fs.
harvard.edu
elsevier.com
sci-hub.se 参考文章(17)
T. C. Damen, Jagdeep Shah, Femtosecond luminescence spectroscopy with 60 fs compressed pulses Applied Physics Letters. ,vol. 52, pp. 1291- 1293 ,(1988) , 10.1063/1.99141
Tatsuo Kanetake, Ken Ishikawa, Takao Koda, Yoshinori Tokura, Kenji Takeda, Highly oriented polydiacetylene films by vacuum deposition Applied Physics Letters. ,vol. 51, pp. 1957- 1959 ,(1987) , 10.1063/1.98312
Takayoshi Kobayashi, Masayuki Yoshizawa, Femtosecond nonlinear response of polydiacetylenes and polythiophenes Synthetic Metals. ,vol. 43, pp. 3129- 3134 ,(1991) , 10.1016/0379-6779(91)91250-E
Jacek Swiatkiewicz, Xin Mi, Pratibha Chopra, Paras N. Prasad, Picosecond time‐resolved and frequency domain coherent Raman scattering study of conjugated polymeric films: A soluble polydiacetylene, poly‐4‐BCMU Journal of Chemical Physics. ,vol. 87, pp. 1882- 1886 ,(1987) , 10.1063/1.453203
B.I. Greene, J. Orenstein, R.R. Millard, L.R. Williams, Picosecond relaxation dynamics in polydiacetylene-pTS Chemical Physics Letters. ,vol. 139, pp. 381- 385 ,(1987) , 10.1016/0009-2614(87)80577-8
Takayoshi Kobayashi, Hidetsugu Ikeda, Dependence of the spectrum and decay of transient photoinduced reflectance change on excitation wavelength and intensity in polydiacetylene single crystals Chemical Physics Letters. ,vol. 133, pp. 54- 58 ,(1987) , 10.1016/0009-2614(87)80052-0
Takayoshi Kobayashi, Ultrafast relaxation in conjugated polymers Journal of Luminescence. ,vol. 53, pp. 159- 164 ,(1992) , 10.1016/0022-2313(92)90129-W
P. P. Ho, N. L. Yang, T. Jimbo, Q. Z. Wang, R. R. Alfano, Ultrafast resonant optical Kerr effect in 4-butoxycarbonylmethylurethane polydiacetylene Journal of the Optical Society of America B. ,vol. 4, pp. 1025- 1029 ,(1987) , 10.1364/JOSAB.4.001025
Takayoshi Kobayashi, Masayuki Yoshizawa, Uwe Stamm, Makoto Taiji, Masamitsu Hasegawa, Relaxation dynamics of photoexcitations in polydiacetylenes and polythiophene Journal of The Optical Society of America B-optical Physics. ,vol. 7, pp. 1558- 1578 ,(1990) , 10.1364/JOSAB.7.001558
Shin-ya Koshihara, Takayoshi Kobayashi, Hisao Uchiki, Tadao Kotaka, Hiroshi Ohnuma, Fluorescence spectrum and lifetime of urethane-substituted polydiacetylene in solution Chemical Physics Letters. ,vol. 114, pp. 446- 450 ,(1985) , 10.1016/0009-2614(85)85118-6