Zobrazeno 1 - 10
of 68
pro vyhledávání: '"Gorbach, Andrey V."'
Publikováno v:
Opt. Lett. 48, 1982 (2023)
We report that equidistant 1D arrays of thin-film Lithium Niobate nano-waveguides generically support topological edge states. Unlike conventional coupled-waveguide topological systems, the topological properties of these arrays are dictated by the i
Externí odkaz:
http://arxiv.org/abs/2303.00809
We present a model for $\chi^{(2)}$ waveguides accounting for three modes, two of which make an avoided crossing at the second harmonic wavelength. We introduce two linearly coupled pure modes and adjust the coupling to replicate the waveguide disper
Externí odkaz:
http://arxiv.org/abs/2108.08563
Publikováno v:
Phys. Rev. A 102, 023523 (2020)
We analyse Raman-induced self-frequency shift in two-component solitons supported by both quadratic and cubic nonlinearities. Treating Raman terms as a perturbation, we derive expressions for soliton velocity and frequency shifts of the fundamental f
Externí odkaz:
http://arxiv.org/abs/2006.00026
Linear discrete diffraction of light within a waveguide array allows control over the longitudinal spatial profile of light. We propose a method of using this control to effectively modulate the nonlinearity in a spontaneous four wave mixing system.
Externí odkaz:
http://arxiv.org/abs/1912.03950
Publikováno v:
Phys. Rev. Research 1, 033146 (2019)
We present a model of soliton propagation in waveguides with quadratic nonlinearity. Criteria for solitons to exist in such waveguides are developed and two example nano-waveguide structures are simulated as proof of concept. Interactions between qua
Externí odkaz:
http://arxiv.org/abs/1908.00364
Publikováno v:
Phys. Rev. A 100, 053815 (2019)
We analyze the process of photon-pair generation via spontaneous parametric down-conversion in a quadratic nonlinear asymmetric waveguide coupler. The two waveguides have different geometry, such that light coupling only occurs within a narrow bandwi
Externí odkaz:
http://arxiv.org/abs/1907.09215
The existing widely-accepted theory of photon-pair generation via spontaneous down-conversion (SPDC) in nonlinear optical crystals and waveguides is incomplete, as it fails to account for the important physical phenomenon of parametric resonances. We
Externí odkaz:
http://arxiv.org/abs/1902.02214
Autor:
Gorbach, Andrey V., Ivanov, Edouard
Publikováno v:
Phys. Rev. A 94, 013811 (2016)
We present perturbation theory for analysis of generic third-order nonlinear processes in graphene integrated photonic structures. Optical response of graphene is treated as the nonlinear boundary condition in Maxwell equations. The derived models ar
Externí odkaz:
http://arxiv.org/abs/1605.06320
Publikováno v:
Phys. Rev. A 92, 033851 (2015)
The influence of Raman scattering and higher order dispersions on solitons and frequency comb generation in silica microring resonators is investigated. The Raman effect introduces a threshold value in the resonator quality factor above which the fre
Externí odkaz:
http://arxiv.org/abs/1503.00672
We propose a setup to observe soliton ratchet effects using discrete cavity solitons in a one-dimensional array of coupled waveguide optical resonators. The net motion of solitons can be generated by an adiabatic shaking of the holding beam with zero
Externí odkaz:
http://arxiv.org/abs/nlin/0602004