科研之友
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摘要
We measured the angular distribution of the near-backward multiphoton-excited fluorescence emission by ellipsoidal-shaped, dye-doped ethanol microdroplets deformed perpendicularly to the direction of the incident laser beam. The high-intensity region in the backward direction is elongated in the same direction as the emitting microdroplet. Simulations based on ray tracing agree well with the experimental pattern and show that the droplet aspect ratio e may be deduced from the fluorescence pattern of both oblate and prolate microparticles with e varying from 0.9 to 1.3.
- 出版日期2008-4
