Lan Yang

TL;DR: This work demonstrates experimentally on-chip undoped silica deformed microcavities which support both nearly unidirectional emission and ultrahigh Q factors exceeding 100 million and low-threshold, unid Directional microlasing in such a microc Cavity with Q factor about 3 million is realized by erbium doping and a convenient free-space excitation.

TL;DR: In this article, the authors demonstrate a self-stable equilibrium solution for a pump-microcavity system, which is derived by the thermal nonlinearity of the pump.

TL;DR: In this paper, a controlled manipulation of mode splitting in an optical microresonator coupled to two nanoprobes is presented. And the authors show that the split modes can be tuned simultaneously or individually and experience crossing or anti-crossing in frequency and linewidth, and a tunable transition between standing wave mode and travelling wave mode is also observed.

TL;DR: In this article, the authors presented a general mechanism to amplify nonlinearity using parity-time symmetric structures, and showed that an on-chip microscale phonon diode can be fabricated using a π-mathcal{PT}$-symmetric mechanical system.

TL;DR: In this article, a thin layer of polydimethylsiloxane (PDMS) was applied to the surface of the silica resonator to reduce the thermal noise in high-Q silica microcavities.