Generation of coherent mid-IR light by parametric four-wave mixing in alkali vapor

被引：34

作者：

Sebbag, Yoel ^{[1
]}

Barash, Yefim ^{[1
]}

Levy, Uriel ^{[1
]}

机构：

[1] Hebrew Univ Jerusalem, Ctr Nanosci & Nanotechnol, Benin Sch Engn & Comp Sci, Dept Appl Phys, IL-91904 Jerusalem, Israel

来源：

OPTICS LETTERS | 2019年 / 44卷 / 04期

基金：

以色列科学基金会;

关键词：

FREQUENCY-UP-CONVERSION; AMPLIFIED SPONTANEOUS EMISSION; COLLIMATED BLUE; 2-PHOTON EXCITATION; MEMORY; CAVITY;

D O I：

10.1364/OL.44.000971

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The parametric four-wave mixing (4WM) process responsible for the generation of coherent blue light in alkali vapors is a self-seeded process which starts by population inversion and amplified spontaneous emission (ASE). Lately, attention has been turned toward frequency up- and down-conversion in alkali vapors, using relatively low pump powers with CW diode lasers. In this Letter, we investigate the interplay between ASE and 4WM in rubidium (Rb) vapors by studying the mid-infrared (mid-IR) radiation emitted in the forward direction at 5.23 mu m. We show that the ASE can be suppressed by 4WM in the CW regime. Thus, we demonstrate the generation of coherent mid-IR light at 5.23 mu m in hot Rb vapors via parametric 4WM. (C) 2019 Optical Society of America

引用

页码：971 / 974

页数：4

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