Field-free orientation of molecules

被引：215

作者：

Machholm, M ^{[1
]}

Henriksen, NE

机构：

[1] Natl Univ Singapore, Dept Computat Sci, Singapore 119260, Singapore

[2] Tech Univ Denmark, Dept Chem, DK-2800 Lyngby, Denmark

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.87.193001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We consider impulsive excitation of a Linear polar molecule by a plane polarized electromagnetic "half-cycle" pulse in the terahertz range. A rotational wave packet is created with angular momentum states of different parity. The time evolution of the wave packet corresponds to alternating molecular orientations with respect to the polarization axis of the field. This field-free time-dependent orientation of the molecule is computationally demonstrated, also at finite temperatures, with LiH and NaI as examples.

引用

页码：1 / 193001

页数：4

共 18 条

[1] Time-dependent alignment and orientation of molecules in combined electrostatic and pulsed nonresonant laser fields [J].

Cai, L ;

Marango, J ;

Friedrich, B .

PHYSICAL REVIEW LETTERS, 2001, 86 (05) :775-778

[2] TIGHT FOCUSING OF BEAMS OF POLAR POLYATOMIC-MOLECULES VIA THE ELECTROSTATIC HEXAPOLE LENS [J].

CHO, VA ;

BERNSTEIN, RB .

JOURNAL OF PHYSICAL CHEMISTRY, 1991, 95 (21) :8129-8136

[3] Two-frequency IR laser orientation of polar molecules. Numerical simulations for HCN [J].

Dion, CM ;

Bandrauk, AD ;

Atabek, O ;

Keller, A ;

Umeda, H ;

Fujimura, Y .

CHEMICAL PHYSICS LETTERS, 1999, 302 (3-4) :215-223

[4] SPATIAL ORIENTATION OF MOLECULES IN STRONG ELECTRIC-FIELDS AND EVIDENCE FOR PENDULAR STATES [J].

FRIEDRICH, B ;

HERSCHBACH, DR .

NATURE, 1991, 353 (6343) :412-414

[5] ALIGNMENT AND TRAPPING OF MOLECULES IN INTENSE LASER FIELDS [J].

FRIEDRICH, B ;

HERSCHBACH, D .

PHYSICAL REVIEW LETTERS, 1995, 74 (23) :4623-4626

[6] Molecular alignment and orientation in short pulse laser fields [J].

Henriksen, NE .

CHEMICAL PHYSICS LETTERS, 1999, 312 (2-4) :196-202

[7] TIME-DEPENDENT QUANTUM-MECHANICAL METHODS FOR MOLECULAR-DYNAMICS [J].

KOSLOFF, R .

JOURNAL OF PHYSICAL CHEMISTRY, 1988, 92 (08) :2087-2100

[8] REACTIVE SCATTERING OF K FROM ORIENTED AND ISOTROPIC CH3I MOLECULES [J].

LOESCH, HJ ;

REMSCHEID, A .

JOURNAL OF PHYSICAL CHEMISTRY, 1991, 95 (21) :8194-8200

[9] Two-pulse laser control for selective photofragment orientation [J].

Machholm, M ;

Henriksen, NE .

JOURNAL OF CHEMICAL PHYSICS, 1999, 111 (07) :3051-3057

[10] Isomerization, melting, and polarity of model water clusters:: (H2O)6 and (H2O)8 [J].

Rodriguez, J ;

Laria, D ;

Marceca, EJ ;

Estrin, DA .

JOURNAL OF CHEMICAL PHYSICS, 1999, 110 (18) :9039-9047

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