Pump-probe polarization anisotropy study of doubly degenerate electronic reorientation in silicon naphthalocyanine

被引：30

作者：

Ferro, AA ^{[1
]}

Jonas, DM ^{[1
]}

机构：

[1] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA

来源：

JOURNAL OF CHEMICAL PHYSICS | 2001年 / 115卷 / 14期

关键词：

D O I：

10.1063/1.1409352

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Measurements with 26 fs pulses that cover the Q(0-0) band of silicon 2,3-naphthalocyanine bis(trihexylsilyloxide) yielded an initial anisotropy of 0.40 that decayed to 0.12 over 200 fs. This contradicts theories predicting anisotropy decay from 7/10 to 1/10. Including ground state bleaching and excited state absorption, anisotropy decay from 2/5 to 1/10 is predicted for degenerate electronic reorientation and dephasing. (C) 2001 American Institute of Physics.

引用

页码：6281 / 6284

页数：4

共 26 条

[1] The first events in photosynthesis:: Electronic coupling and energy transfer dynamics in the photosynthetic reaction center from Rhodobacter sphaeroides [J].

Arnett, DC ;

Moser, CC ;

Dutton, PL ;

Scherer, NF .

JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (11) :2014-2032

[2]

de Polavieja GG, 1998, AM J PHYS, V66, P431, DOI 10.1119/1.18799

[3]

FERRO AWA, 2001, THESIS U COLORADO BO

[4] DIRECT MEASUREMENT OF ELECTRONIC DEPHASING USING ANISOTROPY [J].

GALLI, C ;

WYNNE, K ;

LECOURS, SM ;

THERIEN, MJ ;

HOCHSTRASSER, RM .

CHEMICAL PHYSICS LETTERS, 1993, 206 (5-6) :493-499

[5]

Gouterman M., 1978, PORPHYRINS, P1, DOI DOI 10.1016/B978-0-12-220103-5.50008-8

[6] Time-resolved fluorescence spectroscopy of high-lying electronic states of Zn-tetraphenylporphyrin [J].

Gurzadyan, GG ;

Tran-Thi, TH ;

Gustavsson, T .

JOURNAL OF CHEMICAL PHYSICS, 1998, 108 (02) :385-388

[7]

Herzberg G. H., 1991, ELECT SPECTRA POLYAT

[8] Pump-probe polarization anisotropy study of femtosecond energy transfer within the photosynthetic reaction center of Rhodobacter sphaeroides R26 [J].

Jonas, DM ;

Lang, MJ ;

Nagasawa, Y ;

Joo, T ;

Fleming, GR .

JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (30) :12660-12673

[9]

JONAS DM, UNPUB

[10] THEORY OF POLARIZED FLUORESCENCE FROM MOLECULAR PAIRS - FORSTER TRANSFER AT LARGE ELECTRONIC COUPLING [J].

KNOX, RS ;

GULEN, D .

PHOTOCHEMISTRY AND PHOTOBIOLOGY, 1993, 57 (01) :40-43

← 1 2 3 →