A Caltech Library Service

Coherence-Assisted Resonance with Sub-Transit-Limited Linewidth

Feng, Lei and Li, Pengxiong and Jiang, Liang and Wen, Jianming and Xiao, Yanhong (2012) Coherence-Assisted Resonance with Sub-Transit-Limited Linewidth. Physical Review Letters, 109 (23). Art. No. 233006. ISSN 0031-9007. doi:10.1103/PhysRevLett.109.233006.

PDF - Published Version
See Usage Policy.


Use this Persistent URL to link to this item:


We demonstrate a novel approach to obtain a resonance linewidth below the transit limit. The cross correlation between the induced intensity modulation of two lasers coupling the target resonance exhibits a narrow spectrum. 1/30 of the transit-limited width is achieved in a proof-of-principle experiment where two ground states are the target resonance levels. Attainable linewidth is only limited by laser shot noise in principle. The experimental results qualitatively agree with an intuitive analytical model and numerical calculations. This technique can be easily implemented and should be applicable to many atomic, molecular, and solid state spin systems for spectroscopy, metrology, and resonance-based sensing and imaging.

Item Type:Article
Related URLs:
URLURL TypeDescription
Jiang, Liang0000-0002-0000-9342
Additional Information:© 2012 American Physical Society. Received 25 March 2012; revised 5 November 2012; published 5 December 2012. We thank Vladan Vuletic´, Eugeniy Mikhailov, Saijun Wu, Xiangming Hu, Shengwang Du, Michael Hohensee, Irina Novikova, Shiyao Zhu, Weitao Liu, and Mengzhen Zhang for stimulating discussions. L. F. and P. L. contributed equally to this work. This work was funded by the NBRPC (973 Program Grants No. 2011CB921604 and No. 2012CB921604), the NNSFC (Grant No. 10904018), and Fudan University (Y. X.); by the Sherman Fairchild Foundation and the NBRPC (973 Program Grants No. 2011CBA00300 and No. 2011CBA00301) (L. J.); and by the AI-TF New Faculty Grant and the NSERC Discovery Grant (J.W.).
Funding AgencyGrant Number
NBRPC 973 Program2011CB921604
NBRPC 973 Program2012CB921604
Fudan UniversityUNSPECIFIED
Sherman Fairchild FoundationUNSPECIFIED
NBRPC 973 Program2011CBA00300
NBRPC 973 Program2011CBA00301
Issue or Number:23
Classification Code:PACS: 32.70.Jz, 42.50.Gy
Record Number:CaltechAUTHORS:20130110-104615277
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:36299
Deposited By: Jason Perez
Deposited On:10 Jan 2013 21:24
Last Modified:09 Nov 2021 23:21

Repository Staff Only: item control page