Second order parametric processes in nonlinear silica microspheres

Yong Xu, Ming Han, Anbo Wang, Zhiwen Liu, James R. Heflin

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


We analyze second order parametric processes in a silica microsphere coated with radially aligned nonlinear optical molecules. In a high-Q nonlinear microsphere, we discover that it is possible to achieve ultralow threshold parametric oscillation that obeys the rule of angular momentum conservation. Based on symmetry considerations, one can also implement parametric processes that naturally generate quantum entangled photon pairs. Practical issues regarding implementation of the nonlinear microsphere are also discussed.

Original languageEnglish (US)
Article number163905
JournalPhysical Review Letters
Issue number16
StatePublished - Apr 25 2008

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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