Excited-State Dynamics of CS2 Studied by Photoelectron Imaging with a Time Resolution of 22 fs

被引：18

作者：

Fuji, Takao ^{[1
,2
]}

Suzuki, Yoshi-Ichi ^{[1
,2
,3
]}

Horio, Takuya ^{[1
,2
,3
]}

Suzuki, Toshinori ^{[1
,2
,3
]}

机构：

[1] Japan Sci & Technol Agcy, CREST, Chiyoda Ku, Tokyo 1020075, Japan

[2] RIKEN, Adv Sci Inst, Wako, Saitama 3510198, Japan

[3] Kyoto Univ, Grad Sch Sci, Dept Chem, Kyoto 6068502, Japan

来源：

CHEMISTRY-AN ASIAN JOURNAL | 2011年 / 6卷 / 11期

关键词：

carbon disulfide; photochemistry; photoelectron spectroscopy; photoionization; wave packet dynamics; 193; NM; PREDISSOCIATION DYNAMICS; SPECTROSCOPY; IONIZATION; PHOTOIONIZATION; MOLECULES; SPECTRUM; PULSES; NAI;

D O I：

10.1002/asia.201100458

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The ultrafast dynamics of CS2 in the B-1(2)((1)Sigma(+)(u)) state was studied by photoelectron imaging with a time resolution of 22 fs. The photoelectron signal intensity exhibited clear vibrational quantum beats due to wave packet motion. The signal intensity decayed with a lifetime of about 400 fs. This decay was preceded by a lag of around 30 fs, which was considered to correspond to the time for a vibrational wave packet to propagate from the Franck-Condon region to the region where predissociation occurred. The photoelectron angular distribution remained constant when the pump-probe delay time was varied. Consequently, variation of the electronic character caused by the vibrational wave packet motion was not identified within the accuracy of our measurements.

引用

页码：3028 / 3034

页数：7

共 29 条

[1] Studies of electron transfer in NaI with pump-probe femtosecond photoelectron spectroscopy [J].

Arasaki, Y ;

Takatsuka, K ;

Wang, KH ;

McKoy, V .

JOURNAL OF CHEMICAL PHYSICS, 2003, 119 (15) :7913-7923

[2] An experimental and theoretical study of the valence shell photoelectron spectrum of carbon disulphide [J].

Baltzer, P ;

Wannberg, B ;

Lundqvist, M ;

Karlsson, L ;

Holland, DMP ;

MacDonald, MA ;

Hayes, MA ;

Tomasello, P ;

vonNiessen, W .

CHEMICAL PHYSICS, 1996, 202 (01) :185-209

[3] Time-Resolved Molecular Frame Dynamics of Fixed-in-Space CS2 Molecules [J].

Bisgaard, Christer Z. ;

Clarkin, Owen J. ;

Wu, Guorong ;

Lee, Anthony M. D. ;

Gessner, Oliver ;

Hayden, Carl C. ;

Stolow, Albert .

SCIENCE, 2009, 323 (5920) :1464-1468

[4] The reflection of predissociation dynamics in pump/probe photoelectron distributions [J].

Braun, M ;

Meier, C ;

Engel, V .

JOURNAL OF CHEMICAL PHYSICS, 1996, 105 (02) :530-534

[5] ANGLE RESOLVED PHOTO-ELECTRON SPECTROSCOPY OF CS2 AND COS MEASURED AS A FUNCTION OF PHOTON ENERGY FROM 21 TO 70 EV [J].

CARLSON, TA ;

KRAUSE, MO ;

GRIMM, FA .

JOURNAL OF CHEMICAL PHYSICS, 1982, 77 (04) :1701-1709

[6] ONE-PHOTON-RESONANT AND 2-PHOTON-RESONANT MULTIPHOTON IONIZATION SPECTRA OF CS2 FROM 45 500 TO 48 100CM-1 [J].

DONALDSON, DJ .

JOURNAL OF CHEMICAL PHYSICS, 1989, 91 (12) :7455-7460

[7] 2100 A BANDS OF CS2 [J].

DOUGLAS, AE ;

ZANON, I .

CANADIAN JOURNAL OF PHYSICS, 1964, 42 (04) :627-&

[8] Ultrafast predissociation and coherent phenomena in CS2 excited by femtosecond laser pulses at 194-207 nm [J].

Farmanara, P ;

Stert, V ;

Radloff, W .

JOURNAL OF CHEMICAL PHYSICS, 1999, 111 (12) :5338-5343

[9] Generation of 12 fs deep-ultraviolet pulses by four-wave mixing through filamentation in neon gas [J].

Fuji, Takao ;

Horio, Takuya ;

Suzuki, Toshinori .

OPTICS LETTERS, 2007, 32 (17) :2481-2483

[10] Experimental and theoretical investigation of a multicolor filament [J].

Fuji, Takao ;

Suzuki, Toshinori ;

Serebryannikov, Evgenii E. ;

Zheltikov, Aleksei .

PHYSICAL REVIEW A, 2009, 80 (06)

← 1 2 3 →