Two-photon pumped lasing from methanol micro-droplets doped by a weakly fluorescent dye

被引：23

作者：

Anand, M

Dharmadhikari, AK

Dharmadhikari, JA

Mishra, A

Mathur, D

Krishnamurthy, M

机构：

[1] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India

[2] Polytech Univ, Dept Chem & Chem Engn, Brooklyn, NY 11201 USA

来源：

CHEMICAL PHYSICS LETTERS | 2003年 / 372卷 / 1-2期

关键词：

D O I：

10.1016/S0009-2614(03)00426-3

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report lasing induced by two-photon absorption (TPA) from micro-droplets of a weakly fluorescent dye (DASPI) doped in methanol. Dye-doped methanol droplets, of uniform diameter of 20 mum, are generated using a piezo-driven capillary. The droplet size is determined by a direct imaging technique as well as from peak separations of lasing (morphology dependent resonances - MDRs) spectra. The threshold for TPA-induced lasing of droplets with 0.01 M concentration of the dye is determined to be about 0.4 GW cm(-2). The lasing spectral emission from the micro-droplets exhibits well-resolved structure that is related to the MDR. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：263 / 268

页数：6

共 22 条

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