Quantum-Noise-Limited Optical Frequency Comb Spectroscopy

被引：145

作者：

Foltynowicz, Aleksandra ^{[1
]}

Ban, Ticijana ^{[3
]}

Maslowski, Piotr ^{[2
]}

Adler, Florian

Ye, Jun

机构：

[1] Natl Inst Stand & Technol, JILA, Boulder, CO 80309 USA

[2] Uniwersytet Mikolaja Kopernika, Inst Fizyki, Torun, Poland

[3] Univ Zagreb, Inst Phys, Zagreb, Croatia

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 107卷 / 23期

基金：

美国国家科学基金会; 瑞典研究理事会;

关键词：

FOURIER-TRANSFORM SPECTROSCOPY; STABILIZATION;

D O I：

10.1103/PhysRevLett.107.233002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We achieve a quantum-noise-limited absorption sensitivity of 1.7 x 10(-12) cm(-1) per spectral element at 400 s of acquisition time with cavity-enhanced frequency comb spectroscopy, the highest demonstrated for a comb-based technique. The system comprises a frequency comb locked to a high-finesse cavity and a fast-scanning Fourier transform spectrometer with an ultralow-noise autobalancing detector. Spectra with a signal-to-noise ratio above 1000 and a resolution of 380 MHz are acquired within a few seconds. The measured absorption line shapes are in excellent agreement with theoretical predictions.

引用

页数：5

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