Synchronous achievement of laser frequency stabilization and tunability via modulation transfer spectroscopy on the rubidium D1 line

Zhao, Wenlei; Zhou, Xinxiu; Shang, Jingcheng; Li, Xiufei; Xiong, Mingliang; Zhang, Lingwei; Cao, Zhaoyang; Luo, Huilin

doi:10.1016/j.optcom.2024.131153

Optics Communications

2025

DOI: 10.1016/j.optcom.2024.131153

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Synchronous achievement of laser frequency stabilization and tunability via modulation transfer spectroscopy on the rubidium D1 line

Wenlei Zhao,

Xinxiu Zhou,

Jingcheng Shang

et al.

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Saturated absorption spectroscopy of ⁸⁷Rb atoms using structured light: observation of narrow hyperfine and crossover resonances

Akhtar,

Das,

Saha

et al. 2024

Phys. Scr.

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An experiment on the saturated absorption spectroscopy (SAS) of 87Rb-D2 line is performed using the Laguerre-Gaussian (LG) beam as structured light. The theoretical simulation of which is done by considering a four-level atom-laser coupled system. The theoretically simulated spectra fairly match with the experimentally observed spectra. The line-width narrowing behavior of both the observed hyperfine and crossover resonances in the Doppler-broadened probe absorption spectra is attributed by the spatially dependent Rabi frequency of the pump LG beam irrespective of the characteristics of the probe beam. The results also illustrated that the narrowing behavior of the line shapes of the hyperfine structure using the LG beam is universal in nature, i.e. irrespective of hyperfine or crossover transitions. This structured light-induced narrowing of line-width of the sub Doppler hyperfine and crossover resonances can be utilized for high-precision laser frequency locking at a particular hyperfine or crossover transition. Moreover, a significant narrowing of hyperfine and crossover resonances with the variation of the orbital angular momentum (OAM) number of the LG beam shows that the generated SAS signal can be manipulated by using the OAM of the structured light as a control knob.

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Saturated absorption spectroscopy of ⁸⁷Rb atoms using structured light: observation of narrow hyperfine and crossover resonances

Akhtar,

Das,

Saha

et al. 2024

Phys. Scr.

View full text Add to dashboard Cite

show abstract

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Synchronous achievement of laser frequency stabilization and tunability via modulation transfer spectroscopy on the rubidium D1 line

Cited by 1 publication

References 27 publications

Saturated absorption spectroscopy of ⁸⁷Rb atoms using structured light: observation of narrow hyperfine and crossover resonances

Saturated absorption spectroscopy of ⁸⁷Rb atoms using structured light: observation of narrow hyperfine and crossover resonances

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Synchronous achievement of laser frequency stabilization and tunability via modulation transfer spectroscopy on the rubidium D1 line

Cited by 1 publication

References 27 publications

Saturated absorption spectroscopy of 87Rb atoms using structured light: observation of narrow hyperfine and crossover resonances

Saturated absorption spectroscopy of 87Rb atoms using structured light: observation of narrow hyperfine and crossover resonances

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Saturated absorption spectroscopy of ⁸⁷Rb atoms using structured light: observation of narrow hyperfine and crossover resonances

Saturated absorption spectroscopy of ⁸⁷Rb atoms using structured light: observation of narrow hyperfine and crossover resonances