Fiber-based confocal microscope for cryogenic spectroscopy

被引：33

作者：

Hoegele, Alexander ^{[1
]}

Seidl, Stefan ^{[1
]}

Kroner, Martin ^{[1
]}

Karrai, Khaled ^{[1
]}

Schulhauser, Christian ^{[2
]}

Sqalli, Omar ^{[2
]}

Scrimgeour, Jan ^{[3
]}

Warburton, Richard J. ^{[3
]}

机构：

[1] Univ Munich, Dept Phys, Ctr NanoSci, D-80539 Munich, Germany

[2] Attocube Syst AG, D-80539 Munich, Germany

[3] Heriot Watt Univ, Sch Engn & Phys Sci, Edinburgh EH14 4AS, Midlothian, Scotland

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2008年 / 79卷 / 02期

关键词：

D O I：

10.1063/1.2885681

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We describe the design and performance of a fiber-based confocal microscope for cryogenic operation. The microscope combines positioning at low temperatures along three space coordinates of millimeter translation and nanometerprecision with high stability and optical performance at the diffraction limit. It was successfully tested under ambient conditions as well as at liquid nitrogen (77 K) and liquid helium (4 K) temperatures. The compact nonmagnetic design provides for long term position stability against helium refilling transfers, temperature sweeps, as well as magnetic field variation between -9 and 9 T. As a demonstration of the microscope performance, applications in the spectroscopy of single semiconductor quantum dots are presented. 0 2008 American Institute of Physics.

引用

页数：7

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