Ionization suppression of Cl2 molecules in intense laser fields -: art. no. 025401

被引：36

作者：

Benis, EP ^{[1
]}

Xia, JF ^{[1
]}

Tong, XM ^{[1
]}

Faheem, M ^{[1
]}

Zamkov, M ^{[1
]}

Shan, B ^{[1
]}

Richard, P ^{[1
]}

Chang, Z ^{[1
]}

机构：

[1] Kansas State Univ, Dept Phys, JR Macdonald Lab, Manhattan, KS 66506 USA

来源：

PHYSICAL REVIEW A | 2004年 / 70卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.70.025401

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The strong field ionization of Cl-2 molecules is investigated by using an ultrashort pulse Ti:sapphire laser. A spatial imaging technique is used in such measurements to reduce the effect of spatial integration. Cl-2 shows strong ionization suppression as do other diatomic molecules having valence orbitals with antibonding symmetry (O-2,S-2) when compared with the field ionization of atoms with nearly identical ionization potential. A more general molecular tunneling ionization model is proposed, and the calculations are in reasonable agreement with the measurements. Our results support that antibonding leads to ionization suppression, a trend that only F-2 goes against and that needs to be further investigated.

引用

页码：025401 / 1

页数：4

共 19 条

[1]

Ammosov M. V., 1986, Soviet Physics - JETP, V64, P1191

[2] Ratiometric comparison of intense field ionization of atoms and diatomic molecules [J].

DeWitt, MJ ;

Wells, E ;

Jones, RR .

PHYSICAL REVIEW LETTERS, 2001, 87 (15) :153001-153001

[3] Single and double ionization of diatomic molecules in strong laser fields [J].

Guo, C ;

Li, M ;

Nibarger, JP ;

Gibson, GN .

PHYSICAL REVIEW A, 1998, 58 (06) :R4271-R4274

[4] Multielectron effects on single-electron strong field ionization [J].

Guo, CL .

PHYSICAL REVIEW LETTERS, 2000, 85 (11) :2276-2279

[5] Intense-field laser ionization rates in atoms and molecules [J].

Hankin, SM ;

Villeneuve, DM ;

Corkum, PB ;

Rayner, DM .

PHYSICAL REVIEW A, 2001, 64 (01) :134051-1340512

[6]

KELDYSH LV, 1965, SOV PHYS JETP-USSR, V20, P1307

[7] Suppressed molecular ionization for a class of diatomics in intense femtosecond laser fields [J].

Muth-Böhm, J ;

Becker, A ;

Faisal, FHM .

PHYSICAL REVIEW LETTERS, 2000, 85 (11) :2280-2283

[8]

PERELOMOV AM, 1966, ZH EKSP TEOR FIZ, V23, P924

[9] Orientation dependence of field ionization of the hydrogen molecular ion [J].

Plummer, M ;

McCann, JF .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1997, 30 (11) :L401-L411

[10] On the influence of vibrational motion on strong-field ionization rates in molecules [J].

Saenz, A .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2000, 33 (20) :4365-4372

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