DESORPTION INDUCED BY FEMTOSECOND LASER-PULSES

被引：235
作者：
PRYBYLA, JA
HEINZ, TF
MISEWICH, JA
LOY, MMT
GLOWNIA, JH
机构：
来源：
PHYSICAL REVIEW LETTERS | 1990年 / 64卷 / 13期
关键词：
D O I：
10.1103/PhysRevLett.64.1537
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The yield and final-state distributions in translational and internal degrees of freedom have been established for NO molecules desorbed from a Pd(111) surface by 200-fs pulses of 2.0-eV photons. Among the significant characteristics of the desorption process are the large cross section and the high vibrational energy content (Tv>2000 K) of the desorbed molecules. A comparison with the behavior for nanosecond laser pulses indicates that a new desorption mechanism, distinct from either conventional thermal or photochemical processes, is operative in this regime. © 1990 The American Physical Society.
引用
收藏
页码：1537 / 1540
页数：4
相关论文
共 37 条
[1]   THEORY OF THERMAL RELAXATION OF ELECTRONS IN METALS [J].
ALLEN, PB .
PHYSICAL REVIEW LETTERS, 1987, 59 (13) :1460-1463
[2]  
AVOURIS P, 1989, ANNU REV PHYS CHEM, V40, P173
[3]  
Barker J.A., 1985, SURFACE SCI REPT, V4, P1
[4]  
BERTOLO M, IN PRESS
[5]   PHOTODESORPTION OF NO FROM NI(100)-O [J].
BUDDE, F ;
HAMZA, AV ;
FERM, PM ;
ERTL, G ;
WEIDE, D ;
ANDRESEN, P ;
FREUND, HJ .
PHYSICAL REVIEW LETTERS, 1988, 60 (15) :1518-1521
[6]   STATE-RESOLVED EVIDENCE FOR HOT CARRIER DRIVEN SURFACE-REACTIONS - LASER-INDUCED DESORPTION OF NO FROM PT(111) [J].
BUNTIN, SA ;
RICHTER, LJ ;
KING, DS ;
CAVANAGH, RR .
JOURNAL OF CHEMICAL PHYSICS, 1989, 91 (10) :6429-6446
[7]   OPTICALLY DRIVEN SURFACE-REACTIONS - EVIDENCE FOR THE ROLE OF HOT-ELECTRONS [J].
BUNTIN, SA ;
RICHTER, LJ ;
CAVANAGH, RR ;
KING, DS .
PHYSICAL REVIEW LETTERS, 1988, 61 (11) :1321-1324
[8]   LASER-INDUCED GAS-SURFACE INTERACTIONS [J].
Chuang, T. J. .
SURFACE SCIENCE REPORTS, 1983, 3 (01) :1-105
[9]   INTERACTION OF NO AND O-2 WITH PD(111) SURFACES .1. [J].
CONRAD, H ;
ERTL, G ;
KUPPERS, J ;
LATTA, EE .
SURFACE SCIENCE, 1977, 65 (01) :235-244
[10]   THERMAL RESPONSE OF METALS TO ULTRASHORT-PULSE LASER EXCITATION [J].
CORKUM, PB ;
BRUNEL, F ;
SHERMAN, NK ;
SRINIVASANRAO, T .
PHYSICAL REVIEW LETTERS, 1988, 61 (25) :2886-2889
1234