Micro Droplet Laser

-  Micro droplets can form cavities with high Q.
- They holds great promise for highly sensitive intra cavity absorbance detection system with prospects for single-molecule detection.
-Attractive in the development of ultra low threshold lasers.
Challenge: To stabilize the droplet in space.
- Trapping via oscillating electric fields.
- Controllable and micron sized droplets loaded via electro spray.

- Stable trapping in a Paul-Straubel type trap