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Mollow spectrum influenced by collisional fluctuations described by a stochastic model of collisions

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Abstract

In this paper, we consider the influence of collisional fluctuations on optical phenomena. The fluctuations are taken into account by a simple shift of the constant detuning, involved in a set of optical Bloch equations by collision frequency noise in which this noise is modelled by a two-step random telegraph signal. Following that, the stochastic Bloch equations can be solved analytically in an exact way. As an example, we consider in detail the Mollow spectrum of resonance fluorescence for the case of an arbitrary detuning of the laser frequency, where velocity of the emitters simply has a deterministic value or is distributed with the Maxwell–Boltzmann density in which volume of the buffer gas is arbitrary.

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Acknowledgments

This research is funded by Vietnam National Foundation for Science and Technology Development (NAFOSTED) under grant number 103.03-2014.13.

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Authors and Affiliations

  1. Institute of Research and Development, Duy Tan University, Da Nang, Vietnam

    Khoa Doan Quoc & Hieu Nguyen Ngoc

  2. Quang Tri Teacher Training College, Km 3, Highway No 9, Dong Ha, Quang Tri, Vietnam

    Khoa Doan Quoc

  3. Quantum Optics and Engineering Division, Institute of Physics, University of Zielona Góra, Prof. A. Szafrana 4a, 65-516, Zielona Góra, Poland

    Van Cao Long

  4. Faculty of Physics, Warsaw University, Hoża 69, 00-681, Warsaw, Poland

    Van Cao Long

  5. Vinh University, 182 Le Duan, Vinh, Nghe An, Vietnam

    Lanh Chu Van

  6. Hong Duc University, 565 Quang Trung, Thanh Hoa, Vietnam

    Hoa Nguyen Van

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  1. Khoa Doan Quoc
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  2. Van Cao Long
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  3. Lanh Chu Van
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  4. Hoa Nguyen Van
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  5. Hieu Nguyen Ngoc
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Correspondence to Khoa Doan Quoc.

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Doan Quoc, K., Cao Long, V., Chu Van, L. et al. Mollow spectrum influenced by collisional fluctuations described by a stochastic model of collisions. Opt Quant Electron 48, 45 (2016). https://doi.org/10.1007/s11082-015-0324-x

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