Lasing from single, stationary, dye-doped glycerol/water microdroplets located on a superhydrophobic surface |
| |
| Authors: | A Kiraz A Sennaroglu A Kurt AL Demirel |
| |
| Institution: | a Department of Physics, Koç University, Rumelifeneri Yolu, 34450 Sariyer, Istanbul, Turkey
b Department of Chemistry, Koç University, Rumelifeneri Yolu, 34450 Sariyer, Istanbul, Turkey |
| |
| Abstract: | We report laser emission from single, stationary, Rhodamine B-doped glycerol/water microdroplets located on a superhydrophobic surface. In the experiments, a pulsed, frequency-doubled Nd:YAG laser operating at 532 nm was used as the excitation source. The microdroplets ranged in diameter from a few to 20 μm. Lasing was achieved in the red-shifted portion of the dye emission spectrum with threshold fluences as low as 750 J/cm2. Photobleaching was observed when the microdroplets were pumped above threshold. In certain cases, multimode lasing was also observed and attributed to the simultaneous lasing of two modes belonging to different sets of whispering gallery modes. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
