Heavy water detection using ultra-high-Q microcavities.

Fabrication, Coupling and Nonlinear Optics of Ultra- High-q Micro-sphere and Chip-based Toroid Microcavities

Photonic crystal microcavities for chip-based cavity QED

The suitability of recently demonstrated high quality factor (Q), ultra-small mode volume (Veff) graded square lattice photonic crystal microcavities for cavity QED experiments is discussed. In addition to the basic importance of the Q and Veff of such cavities, other issues of both practical and fundamental relevance are considered. Included amongst these are the robustness of the cavity’s per...

The combination of high Q factor and chirality in twin cavities and microcavity chain

Chirality in microcavities has recently shown its bright future in optical sensing and microsized coherent light sources. The key parameters for such applications are the high quality (Q) factor and large chirality. However, the previous reported chiral resonances are either low Q modes or require very special cavity designs. Here we demonstrate a novel, robust, and general mechanism to obtain ...

Feedback control of ultra-high-Q microcavities: application to micro-Raman lasers and microparametric oscillators.

We demonstrate locking of an on-chip, high-Q toroidal-cavity to a pump laser using two, distinct methods: coupled power stabilization and wavelength locking of pump laser to the microcavity. In addition to improvements in operation of previously demonstrated micro-Raman and micro-OPO lasers, these techniques have enabled observation of a continuous, cascaded nonlinear process in which photons g...

Optical fiber coupling to planar photonic crystal microcavities

Recently it has been demonstrated that resonant microcavities formed in planar photonic crystals (PC) are capable of not only confining light to ultra-small optical mode volumes[1], but can also be made of high enough quality to enable photon cavity lifetimes capable of, for instance, reaching strong-coupling with atomic Cs[2] or semiconductor quantum dots[1, 3, 4]. In many of the proposed appl...