Optical phase control of coherent electron dynamics in metals

被引：96

作者：

Petek, H ^{[1
]}

Heberle, AP ^{[1
]}

Nessler, W ^{[1
]}

Nagano, H ^{[1
]}

Kubota, S ^{[1
]}

Matsunami, S ^{[1
]}

Moriya, N ^{[1
]}

Ogawa, S ^{[1
]}

机构：

[1] HITACHI CAMBRIDGE LAB,CAMBRIDGE CB3 0HE,ENGLAND

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.79.4649

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The control of electron distribution excited in a metal through optical phase of the excitation light is demonstrated. Two-photon photoemission from the Cu(lll) surface is excited either by a pair of similar to 15 fs laser pulses with a mutual delay fixed to an accuracy of +/-0.025 fs, or by a single, frequency-chirped pulse. As a consequence of optical coherence in the two-photon excitation process, the photoemission spectra do not only depend on the frequency, as in conventional spectroscopy, but also on the phase of the excitation light. This may be a general phenomenon in multiphoton ionization.

引用

页码：4649 / 4652

页数：4

共 32 条

[1] GENERATION OF 11-FS PULSES FROM A SELF-MODE-LOCKED TI-SAPPHIRE LASER [J].