Absolute frequency measurements of 85Rb n F7/2 Rydberg states using purely optical detection

被引：22

作者：

Johnson, L. A. M. ^{[1
]}

Majeed, H. O. ^{[1
]}

Sanguinetti, B. ^{[1
]}

Becker, Th ^{[2
]}

Varcoe, B. T. H. ^{[1
]}

机构：

[1] Univ Leeds, Sch Phys & Astron, Leeds LS2 9JT, W Yorkshire, England

[2] Max Planck Inst Quantum Opt, D-85748 Garching, Germany

来源：

NEW JOURNAL OF PHYSICS | 2010年 / 12卷

基金：

英国工程与自然科学研究理事会;

关键词：

2-PHOTON TRANSITIONS; QUANTUM DEFECTS; RUBIDIUM; ATOMS; SPECTROSCOPY; SPECTRUM; LASERS; SERIES;

D O I：

10.1088/1367-2630/12/6/063028

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A three-step laser excitation scheme is used to make absolute frequency measurements of highly excited nF(7/2) Rydberg states in Rb-85 for principal quantum numbers n = 33-100. This work demonstrates the first absolute frequency measurements of rubidium Rydberg levels using a purely optical detection scheme. The Rydberg states are excited in a heated Rb vapour cell and Doppler-free signals are detected via purely optical means. All of the frequency measurements are made using a wavemeter that is calibrated against a Global Positioning System (GPS)-disciplined self-referenced optical frequency comb. We find that the measured levels have a very high frequency stability, and are especially robust against electric fields. The apparatus has allowed measurements of the states to an accuracy of 8.0 MHz. The new measurements are analysed by extracting the modified Rydberg-Ritz series parameters.

引用

页数：12

共 25 条

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