The atomic clocks, whether operating at optical or microwave region, can be divided into two categories according to their working mode, namely the passive clocks and active clocks …
We propose a new type of superradiant laser based on a hot atomic beam traversing an optical cavity. We show that the theoretical minimum linewidth and maximum power are …
We show that the onset of steady-state superradiance in a bad cavity laser is preceded by a dissipative phase transition between two distinct phases of steady-state subradiance. The …
CC Chen, S Bennetts, RG Escudero, B Pasquiou… - Physical Review …, 2019 - APS
A continuous guided atomic beam of Sr 88 with a phase-space density exceeding 10− 4 in the moving frame and a flux of 3× 10 7 at. s− 1 is demonstrated. This phase-space density is …
A laser is composed of an optical resonator and a gain medium. When stimulated emission dominates mirror losses, the emitted light becomes coherent. We propose a new class of …
We propose a scheme to analyze the generation and detection of optical vortices via spontaneous emission spectra. We consider a five-level M-type atomic system that interacts …
J Zhang, T Shi, J Miao, D Yu, J Chen - npj Quantum Information, 2024 - nature.com
Lasing in the bad-cavity regime has promising applications in quantum precision measurement and frequency metrology due to the reduced sensitivity of the laser frequency …
Background: Theoretical studies of superradiant lasing on optical clock transitions predict a superb frequency accuracy and precision closely tied to the bare atomic linewidth. Such a …
We present a novel technique that makes use of vortex light beams for generating spatially structured spontaneously emission in a atomic four-level configuration. This atomic …