Study of Three Level Cascade System: A Complete Analytical Approach

Authors

  • Arindam Ghosh Department of Physics, Visva-Bharati, Santiniketan, 731235, West Bengal
  • Suman Mondal Department of Physics, Visva-Bharati, Santiniketan, 731235, West Bengal
  • Khairul Islam Department of Physics, Visva-Bharati, Santiniketan, 731235, West Bengal
  • Kalan Mal Department of Physics, Suri Vidyasagar College, Suri, Birbhum 731101, West Bengal
  • Dipankar Bhattacharyya Department of Physics, Santipur College, Santipur 741404, West Bengal
  • Amitava Bandyopadhyay Department of Physics, Visva-Bharati, Santiniketan, 731235, West Bengal

DOI:

https://doi.org/10.26713/jamcnp.v3i2.483

Abstract

A density matrix based complete analytical solution for the probe transmission through a three-level cascade type Doppler free atomic system is obtained. The probe beam couples the ground level to the energy level lying at the middle whereas the control field is acting between the level at the middle and the upper most energy level. The analysis is valid for comparable values of probe and control Rabi frequencies too. The probe response shows EIT window when Raman condition is satisfied. The variation of the EIT width with control Rabi frequency under Doppler free condition is studied using the parameters of \(5S_{1/2}\rightarrow 5P_{3/2}\rightarrow 5D_{5/2}\) transitions of \(^{87}\)Rb. At high value of the probe field intensity compared to that of the control field, enhancement in probe absorption is noticed. The increase of the EIT width with control Rabi frequency under Doppler free situation is examined.

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CITATION

How to Cite

Ghosh, A., Mondal, S., Islam, K., Mal, K., Bhattacharyya, D., & Bandyopadhyay, A. (2016). Study of Three Level Cascade System: A Complete Analytical Approach. Journal of Atomic, Molecular, Condensed Matter and Nano Physics, 3(2), 97–104. https://doi.org/10.26713/jamcnp.v3i2.483

Issue

Vol. 3 No. 2 (2016)

Section

Research Article

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