Xingsheng Luan

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High-quality frequency references are the cornerstones in position, navigation and timing applications of both scientific and commercial domains. Optomechanical oscillators, with direct coupling to continuous-wave light and non-material-limited f × Q product, are long regarded as a potential platform for frequency reference in radio-frequency-photonic(More)
to external low-noise reference clocks Jiangjun Zheng, Ying Li, Noam Goldberg, Mickey McDonald, Xingsheng Luan, Archita Hati, Ming Lu, Stefan Strauf, Tanya Zelevinsky, David A. Howe, and Chee Wei Wong Optical Nanostructures Laboratory, Columbia University, New York, New York 10027, USA Department of Physics, Columbia University, New York, New York(More)
Cooling of mesoscopic mechanical resonators represents a primary concern in cavity optomechanics. In this Letter, in the strong optomechanical coupling regime, we propose to dynamically control the cavity dissipation, which is able to significantly accelerate the cooling process while strongly suppressing the heating noise. Furthermore, the dynamic control(More)
In the optomechanical cavity-waveguide coupled devices, we can change the cavity-waveguide coupling (i.e. γe) on purpose. This is achieved by the design of a lowQ mechanical cavity mode and varying the number of mirror cells (Fig. S-1a). As shown in Fig. S-1b, the blue curves are the mechanical band structure of the mirror unit cell (blue rectangle in Fig.(More)
Yong-Chun Liu,1 Yun-Feng Xiao,1,* Xingsheng Luan,2 Qihuang Gong,1 and Chee Wei Wong2,3,† 1State Key Laboratory for Mesoscopic Physics and School of Physics, Peking University; Collaborative Innovation Center of Quantum Matter, Beijing 100871, China 2Optical Nanostructures Laboratory, Columbia University, New York, New York 10027, USA 3Mesoscopic Optics and(More)
The mechanical properties of light have found widespread use in the manipulation of gas-phase atoms and ions, helping create new states of matter and realize complex quantum interactions. The field of cavity-optomechanics strives to scale this interaction to much larger, even human-sized mechanical objects. Going beyond the canonical Fabry-Perot cavity with(More)
Yong-Chun Liu, Xingsheng Luan, Hao-Kun Li, Qihuang Gong, Chee Wei Wong, and Yun-Feng Xiao State Key Laboratory for Mesoscopic Physics and School of Physics, Peking University, Collaborative Innovation Center of Quantum Matter, Beijing 100871, People’s Republic of China Optical Nanostructures Laboratory, Columbia University, New York, New York 10027, USA(More)
This Supplementary Material is organized as follows. In Sec. I, we present the linearization of the optomechanical Hamiltonian. Using the quantum master equation, we describe the covariance approach to calculate the mean phonon number in Sec. II. With this approach, we derive the steady-state cooling limit in Sec. III and the time evolution of mean phonon(More)
We studied the coexistence of optomechanical oscillation and self-pulsation in a monolithic silicon cavity. By mapping laser-cavity detuning and power, the optomechanical-to-self-pulsation transitions are observed with rich nonlinear dynamics, e.g. chaotic, mixing and synchronized regimes.