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Enhanced Kerr nonlinearity via atomic coherence in a three-level atomic system - art. no. 073601

Authors

Wang, H Goorskey, D Xiao, M

Citation

H. Wang et al., Enhanced Kerr nonlinearity via atomic coherence in a three-level atomic system - art. no. 073601, PHYS REV L, 8707(7), 2001, pp. 3601

Citations number

Categorie Soggetti

Physics

Journal title

PHYSICAL REVIEW LETTERS

ISSN journal

00319007 → ACNP

Volume

8707

Issue

Year of publication

2001

Database

ISI

SICI code

0031-9007(20010813)8707:7<3601:EKNVAC>2.0.ZU;2-C

Abstract

We measure the Kerr-nonlinear index of refraction of a three-level Lambda - type atomic system inside an optical ring cavity. The Kerr nonlinearity is modified-and greatly enhanced near atomic resonant conditions for both prob e and coupling beams. The Kerr nonlinear coefficient n(2) changes sign when tli coupling beam frequency detuning switches sign, which can lead to inte resting applications in optical devices such as all-optical switches.