US Patent 7351601 - Fabrication of nanocavity laser

http://www.freepatentsonline.com/7351601.html

This method of solid state laser fabrication teaches optically trapping a quantum dot bead in the laser cavity to provide optical gain for the laser. Claim 1 reads:

1. A method of fabricating a nanocavity laser, said method comprising:

pumping a laser cavity that supports an optical mode having an optical field concentrated in a region of said laser cavity; and

optically trapping a light emitter in said region of said laser cavity, the light emitter configured to provide optical gain for said laser cavity.