Anand, M. ; Dharmadhikari, A. K. ; Dharmadhikari, J. A. ; Mishra, A. ; Mathur, D. ; Krishnamurthy, M. (2003) Two-photon pumped lasing from methanol micro-droplets doped by a weakly fluorescent dye Chemical Physics Letters, 372 (1-2). pp. 263-268. ISSN 0009-2614
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/S0009-2614(03)00426-3
Abstract
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 μ m, 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.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 77583 |
| Deposited On: | 13 Jan 2012 06:53 |
| Last Modified: | 13 Jan 2012 06:53 |
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