Photoionization and detection of ultracold Cs2 molecules through diffuse bands

被引：31

作者：

Dion, CM

Dulieu, O

Comparat, D

Melo, WD

Vanhaecke, N

Pillet, P

Beuc, R

Milosevic, S

Pichler, G

机构：

[1] CNRS, Aime Cotton Lab, Unite Propre 3321, F-91405 Orsay, France

[2] Univ Zagreb, Inst Phys, Zagreb 10001, Croatia

来源：

EUROPEAN PHYSICAL JOURNAL D | 2002年 / 18卷 / 03期

关键词：

D O I：

10.1140/epjd/e20020042

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present the results of absorption measurements in a cesium vapor around 630 K, together with photoionization spectra through a resonance-enhanced two-photon absorption of ultracold cesium dimers created after photoassociation of ultracold cesium atoms. The maximum efficiency of the ultracold molecule ionization is found for wavelengths where absorption at thermal energies is the strongest, in agreement with our theoretical simulations of both processes, involving the so-called Cs-2 diffuse bands. This result will be helpful for further optimization of such a direct way of detection of ultracold molecules.

引用

收藏

页码：365 / 370

页数：6

相关论文

共 30 条

[1]

Bahns JT, 1996, J CHEM PHYS, V104, P9689, DOI 10.1063/1.471731

[2] Photoassociation of cesium atoms into Cs2 33Πg state at 543.5 nm [J].

Ban, T ;

Skenderovic, H ;

Beuc, R ;

Pichler, G .

EUROPHYSICS LETTERS, 1999, 48 (04) :378-384

[3] Decelerating neutral dipolar molecules [J].

Bethlem, HL ;

Berden, G ;

Meijer, G .

PHYSICAL REVIEW LETTERS, 1999, 83 (08) :1558-1561

[4] High resolution Feshbach spectroscopy of cesium [J].

Chin, C ;

Vuletic, V ;

Kerman, AJ ;

Chu, S .

PHYSICAL REVIEW LETTERS, 2000, 85 (13) :2717-2720

[5]

Comparat D, 2000, EUR PHYS J D, V11, P59, DOI 10.1007/s100530070105

[6] Photoassociative spectroscopy and formation of cold molecules in cold cesium vapor: Trap-loss spectrum versus ion spectrum [J].

Comparat, D ;

Drag, C ;

Fioretti, A ;

Dulieu, O ;

Pillet, P .

JOURNAL OF MOLECULAR SPECTROSCOPY, 1999, 195 (02) :229-235

[7] Buffer-gas loaded magnetic traps for atoms and molecules: A primer [J].

deCarvalho, R ;

Doyle, JM ;

Friedrich, B ;

Guillet, T ;

Kim, J ;

Patterson, D ;

Weinstein, JD .

EUROPEAN PHYSICAL JOURNAL D, 1999, 7 (03) :289-309

[8] THE 2(3)PI-G]-X3-SIGMA-U TRIPLET SYSTEM OF CS2 [J].

DIEMER, U ;

GRESS, J ;

DEMTRODER, W .

CHEMICAL PHYSICS LETTERS, 1991, 178 (2-3) :330-336

[9] Resonant coupling in the formation of ultracold ground state molecules via photoassociation [J].

Dion, CM ;

Drag, C ;

Dulieu, O ;

Tolra, BL ;

Masnou-Seeuws, F ;

Pillet, P .

PHYSICAL REVIEW LETTERS, 2001, 86 (11) :2253-2256

[10] Experimental versus theoretical rates for photoassociation and for formation of ultracold molecules [J].

Drag, C ;

Tolra, BL ;

Dulieu, O ;

Comparat, D ;

Vatasescu, M ;

Boussen, S ;

Guibal, S ;

Crubellier, A ;

Pillet, P .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 2000, 36 (12) :1378-1388