We investigate deformed/controllable characteristics of solitons in inhomogeneous parity-time -symmetric optical media. To explore this, we consider a variable-coefficient nonlinear Schrödinger equation involving modulated dispersion, nonlinearity, and tapering effect with -symmetric potential, which governs the dynamics of optical pulse/beam propagation in longitudinally inhomogeneous media. By incorporating three physically interesting and recently identified forms of -symmetric potentials, namely, rational, Jacobian periodic, and harmonic-Gaussian potentials, we construct explicit soliton solutions through similarity transformation. Importantly, we investigate the manipulation dynamics of such optical solitons due to diverse inhomogeneities in the medium by implementing step-like, periodic, and localized barrier/well-type nonlinearity modulations and revealing the underlying phenomena. Also, we corroborate the analytical results with direct numerical simulations. Our theoretical exploration will provide further impetus in engineering optical solitons and their experimental realization in nonlinear optics and other inhomogeneous physical systems.
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June 2023
Research Article|
June 12 2023
Deformation of optical solitons in a variable-coefficient nonlinear Schrödinger equation with three distinct -symmetric potentials and modulated nonlinearities
K. Manikandan
;
K. Manikandan
a)
(Conceptualization, Formal analysis, Investigation, Methodology, Resources, Validation, Visualization, Writing – original draft, Writing – review & editing)
1
Center for Computational Modeling,
Chennai Institute of Technology
, Chennai 600069, Tamil Nadu, India
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K. Sakkaravarthi
;
K. Sakkaravarthi
b)
(Investigation, Resources, Validation, Visualization, Writing – original draft, Writing – review & editing)
2
Young Scientist Training Program,
Asia-Pacific Center for Theoretical Physics (APCTP)
, POSTECH
Campus, Pohang 37673, South Korea
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J. B. Sudharsan
;
J. B. Sudharsan
(Formal analysis, Investigation, Resources, Writing – review & editing)
1
Center for Computational Modeling,
Chennai Institute of Technology
, Chennai 600069, Tamil Nadu, India
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D. Aravinthan
D. Aravinthan
(Formal analysis, Investigation, Resources, Writing – review & editing)
1
Center for Computational Modeling,
Chennai Institute of Technology
, Chennai 600069, Tamil Nadu, India
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K. Manikandan
1,a)
K. Sakkaravarthi
2,b)
J. B. Sudharsan
1
D. Aravinthan
1
1
Center for Computational Modeling,
Chennai Institute of Technology
, Chennai 600069, Tamil Nadu, India
2
Young Scientist Training Program,
Asia-Pacific Center for Theoretical Physics (APCTP)
, POSTECH
Campus, Pohang 37673, South Korea
a)
Electronic addresses: [email protected] and [email protected]
Chaos 33, 063132 (2023)
Article history
Received:
February 04 2023
Accepted:
May 22 2023
Citation
K. Manikandan, K. Sakkaravarthi, J. B. Sudharsan, D. Aravinthan; Deformation of optical solitons in a variable-coefficient nonlinear Schrödinger equation with three distinct -symmetric potentials and modulated nonlinearities. Chaos 1 June 2023; 33 (6): 063132. https://doi.org/10.1063/5.0145283
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