Electromagnetically-induced focusing

被引：61

作者：

Moseley, RR ^{[1
]}

Shepherd, S ^{[1
]}

Fulton, DJ ^{[1
]}

Sinclair, BD ^{[1
]}

Dunn, MH ^{[1
]}

机构：

[1] UNIV ST ANDREWS, DEPT PHYS & ASTRON, JF ALLEN PHYS RES LABS, ST ANDREWS KY16 9SS, FIFE, SCOTLAND

来源：

PHYSICAL REVIEW A | 1996年 / 53卷 / 01期

关键词：

D O I：

10.1103/PhysRevA.53.408

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The theoretical basis for electromagnetically-induced focusing (EIF), which is caused by spatial variations-in the coupling laser strength in an electromagnetically-induced transparency (EIT) experiment, is studied in detail. Using a numerical model it is shown that radial changes in both absorption and refractive index are important in predicting the probe beam's propagation conditions. Detailed calculations of the focusing and defocusing during EIF under various conditions are presented and compared with appropriate experiments. Diffraction like patterns are predicted for, and observed on, a probe beam after propagation through a smaller EIT aperture.

引用

页码：408 / 415

页数：8

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