Experimental setup for low-energy laser-based angle resolved photoemission spectroscopy

被引：64

作者：

Koralek, J. D. ^{[1
]}

Douglas, J. F.

Plumb, N. C.

Griffith, J. D.

Cundiff, S. T.

Kapteyn, H. C.

Murnane, M. M.

Dessau, D. S.

机构：

[1] Univ Colorado, Dept Phys, Boulder, CO 80309 USA

[2] NIST, Boulder, CO 80309 USA

[3] Univ Colorado, JILA, Boulder, CO 80309 USA

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2007年 / 78卷 / 05期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.2722413

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A laser-based angle resolved photoemission (ARPES) system utilizing 6 eV photons from the fourth harmonic of a mode-locked Ti:sapphire oscillator is described. This light source greatly increases the momentum resolution and photoelectron count rate, while reducing extrinsic background and surface sensitivity relative to higher energy light sources. In this review, the optical system is described, and special experimental considerations for low-energy ARPES are discussed. The calibration of the hemispherical electron analyzer for good low-energy angle-mode performance is also described. Finally, data from the heavily studied high T-c superconductor Bi2Sr2CaCu2O8+delta (Bi2212) is compared to the results from higher photon energies. (C) 2007 American Institute of Physics.

引用

页数：5

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