EIT-based giant self-kerr-nonlinear behavior of multilevel X-scheme. (2020)

• Record Type: Journal Article
• Authors: Kaur, Amanjot; Dar, Zubair Iqbal; Kaur, Sukhdeep; Kaur, Paramjit
• Is Part Of: Materials today. Volume 26:Part 3(2020)
• Page Start: 3482
• Page End: 3486
• Publication Date: 2020
• Subjects: Kerr nonlinear coefficient -- Linear/Nonlinear absorption -- Reduced absorption -- Electromagnetically induced transparency -- X-scheme -- Doppler effect; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2020.02.103
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: This paper aims at theoretical evaluation of enhanced self-Kerr nonlinear coefficient in multilevel X-conformation of 87 Rb atom. The coupled density matrix equations are numerically solved by iterative perturbation method to obtain first- and third-order probe response spectra. It is found that large self Kerr nonlinearity with reduced absorption is obtained at the positions of Electromagnetically induced transparency regions. The maximum value, sign as well as slope of self-Kerr nonlinearity can be manipulated via adjusting detuning parameter corresponding to the strong electromagnetic (e.m.) fields. The controllability of Kerr nonlinear index finds usage in numerous applications like optoelectronic devices, quantum computing and so on. It is also elucidated that Kerr nonlinearity can be escalated by inculcation of Doppler effect.