Super-resolution atomic microscopy using orbit angular momentum laser with temporal modulation

2022/09/24 by Yuan Liu, Liu, Yuan, Dongxiao Li +1
Physics and Astronomy · #Atomic Physics (physics.atom-ph) #FOS: Physical sciences #Optics (physics.optics) #Orbital Angular Momentum in Optics #Quantum Physics (quant-ph) #Quantum optics and atomic interactions #Random lasers and scattering media

paper · pdf · doi:10.48550/arxiv.2209.11917

openalex publication_date 2022/09/24 · openalex created_date 2022/09/28 · openalex updated_date 2026/07/28

Abstract

In this paper we propose a dark-state-based trapping strategy to break the optical diffraction limit for microscopy. We utilize a spatially dependent coupling field and a probe laser field with temporal and spatial modulation to interact with three-level atoms. The temporal modulation allows us to reduce the full width at half maximum (FWHM) of point spread function, and the spatial modulation help us obtain better spatial resolution than Gaussian beam. In addition, we also propose a proof-of-principle experiment protocol and discuss its feasibility.

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