Optical selection rules in light emission from the scanning tunneling microscope

被引：23

作者：

Sakurai, M ^{[1
]}

Thirstrup, C

Aono, M

机构：

[1] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050044, Japan

[2] JST, ICORP, Nanoscale Quantum Conductor Array Project, Kawaguchi, Saitama 3320012, Japan

[3] Vir AS, DK-2630 Taastrup, Denmark

[4] Osaka Univ, Dept Mat & Life Sci, Suita, Osaka 5650871, Japan

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.93.046102

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

It is reported that optical selection rules still apply in light emission from the scanning tunneling microscope (STM). Linear polarization of isochromat light emitted from the tunneling gap between a STM tip made of tungsten (W) and a silicon (Si) sample with a (001) clean surface strongly depends on the bias voltage between tip and sample. The results show that pi* and sigma* surface states, for example, of the Si(001) sample contribute to emission of p- and s-polarized light, respectively, in accordance with optical selection rules.

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页码：046102 / 1

页数：4

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