Effect of evaporation on blinking properties of the glycerol microdrop Raman laser
- 1 June 2009
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 105 (11)
- https://doi.org/10.1063/1.3138082
Abstract
We present long-term measurements of the blinking (on/off) behavior of the glycerol microdroplet Raman laser and demonstrate the dependency of the lasing bursts on the evaporation rate of the microdroplet. Electrodynamic levitation is used to study the glycerol microdroplets. Single and multimode lasing are achieved and shown here for droplets of 10.3 and 44.7 μm in diameter, respectively. Typical threshold fluences are measured to be between 200 and 390 mJ/cm2. Lasing occurs in temporally separated nearly symmetric bursts which increase in frequency and decrease in duration as the evaporation rate of the droplet is increased. Hence, we conclude that the Raman lasing blinking is caused by double resonances in the evaporating droplet and show that it can be manipulated by controlling the droplet’s evaporation rate.Keywords
This publication has 16 references indexed in Scilit:
- Quantum Dot Microdrop LaserNano Letters, 2008
- Optical microcavitiesNature, 2003
- Ultralow-threshold Raman laser using a spherical dielectric microcavityNature, 2002
- Observation of sudden temperature jumps in optically levitated microdroplets due to morphology-dependent input resonancesApplied Optics, 1995
- Observation of morphology-dependent input and output resonances in time-dependent Raman spectra of optically levitated microdropletsJournal of Raman Spectroscopy, 1993
- Raman scattering on microparticles: size dependenceJournal of the Optical Society of America B, 1991
- Double-resonance stimulated Raman scattering in micrometer-sized dropletsJournal of the Optical Society of America B, 1990
- Double-resonance stimulated Raman scattering from optically levitated glycerol dropletsPhysical Review A, 1989
- Lasing Droplets: Highlighting the Liquid-Air Interface by Laser EmissionScience, 1986
- Structural resonances observed in the Raman spectra of optically levitated liquid dropletsApplied Optics, 1985