Self-organization, broken symmetry, and lasing in an atomic vapor: The interdependence of gratings and gain

被引:54
作者
Hemmer, PR
Bigelow, NP
Katz, DP
Shahriar, MS
DeSalvo, L
Bonifacio, R
机构
[1] UNIV ROCHESTER,DEPT PHYS & ASTRON,ROCHESTER,NY 14627
[2] UNIV ROCHESTER,LASER ENERGET LAB,ROCHESTER,NY 14627
[3] HARVARD UNIV,DIV APPL SCI,CAMBRIDGE,MA 02138
[4] MIT,RES LAB ELECTR,CAMBRIDGE,MA 02139
[5] UNIV MILAN,IST NAZL FIS NUCL,DIPARTIMENTO FIS,I-20133 MILAN,ITALY
[6] IST NAZL FIS NUCL,I-20133 MILAN,ITALY
关键词
D O I
10.1103/PhysRevLett.77.1468
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We describe a novel optical gain mechanism observed in a strongly driven Doppler-broadened atomic vapor. Gain and self-stabilizing laser oscillations are observed in a direction which is counterpropagating with respect to the traveling wave primp. Using Bragg diffraction, we show that the underlying gain-lasing mechanism is directly tied to a spontaneously formed optical wavelength grating. We suggest that this grating arises from a self-organization or self-bunching of the atoms, an effect which is mediated by recoil just as in the free electron laser.
引用
收藏
页码:1468 / 1471
页数:4
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