Tuning micropillar cavity birefringence by laser induced surface defects

Details Tuning micropillar cavity birefringence by laser induced surface defects Tuning micropillar cavity birefringence by laser induced surface defects

2009-12-01

arxiv.org/abs/0912.0286v1

Appl. Phys. Lett. 95, 251104 (2009)

Physics

Optics

RevTex, 7 pages, 4 figures (accepted for publication in Applied Physics Letters)

Scientific paper

We demonstrate a technique to tune the optical properties of micropillar cavities by creating small defects on the sample surface near the cavity region with an intense focused laser beam. Such defects modify strain in the structure, changing the birefringence in a controllable way. We apply the technique to make the fundamental cavity mode polarization-degenerate and to fine tune the overall mode frequencies, as needed for applications in quantum information science.

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