Geometric phase and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>o</mml:mi></mml:math>-mode blueshift in a chiral anisotropic medium inside a Fabry-Pérot cavity

Timofeev, Ivan V.; Gunyakov, V. A.; Sutormin, V. S.; Myslivets, S. A.; Arkhipkin, V. G.; Vetrov, S. Ya.; Lee, Wei; Zyryanov, V. Ya.

doi:10.1103/physreve.92.052504

Cited by 12 publications

(10 citation statements)

References 88 publications

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“…This condition simulates the Mauguin’s regime in the LC layer for the transmitted light linearly polarized along the director or orthogonally to it on the input mirror. In contrast to the Mauguin’s regime, the propagation of waves in the TN-FPC is not waveguide, since the modes in the bulk of LC remain elliptically polarized 13,19 . The wavelength λ max = 560 nm shown by the arrow in Fig.…”

Section: Resultsmentioning

confidence: 95%

“…6b). Nevertheless, in view of the frequency closeness, the key parameters υ determining the direction of linear polarization of the cavity mode on the mirror 13,19 differ insignificantly even at the end points of the λ( U ) dependence in Fig. 6b, when the modes start diverging.…”

Section: Resultsmentioning

confidence: 95%

“…According to the approach described in ref. 19 , the angle ξ is determined aswhere is the twisted anisotropy phase, φ is the LC director twist angle, δ = Δ ndk 0 /2 is the anisotropy phase (angle), Δ n = n e − n o is the difference between the refractive indices of the e and o waves, and k 0 is the wavenumber in vacuum. In addition, the analytical solution of Eq.…”

Section: Resultsmentioning

confidence: 99%

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Electric field-controlled transformation of the eigenmodes in a twisted-nematic Fabry–Pérot cavity

Gunyakov

Timofeev

Krakhalev

et al. 2018

Sci Rep

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The polarized optical states in the transmission spectrum of a twisted-nematic Fabry–Pérot cavity with the distinctly broken Mauguin’s waveguide regime have been theoretically and experimentally investigated. Specific features of the electric field-induced transformation of the polarization and spectral characteristics of eigenmodes of the neighboring series at the overlap resonant frequencies have been examined. It is demonstrated that the linear polarizations of eigenmodes at the cavity boundaries remain nearly orthogonal and their frequency trajectories reproduce the avoided crossing phenomenon. The experimental data are confirmed analytically and by the numerical simulation of light transmission through the investigated anisotropic multilayer with the use of a Berreman matrix method. The results obtained can be generalized to any materials with the helix response.

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Section: Resultsmentioning

confidence: 95%

Section: Resultsmentioning

confidence: 95%

Section: Resultsmentioning

confidence: 99%

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Electric field-controlled transformation of the eigenmodes in a twisted-nematic Fabry–Pérot cavity

Gunyakov

Timofeev

Krakhalev

et al. 2018

Sci Rep

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“…Therefore, the phase variation by ϕ angle is not a dynamic phase, as it does not change the optical distance. Such a phase shift is called the geometric phase [39,40].…”

Section: Eigenmode Phase Matching Conditionmentioning

confidence: 99%

Chiral Optical Tamm States at the Interface between an All-Dielectric Polarization-Preserving Anisotropic Mirror and a Cholesteric Liquid Crystal

et al. 2019

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As a new localized state of light, the chiral optical Tamm state exists at the interface between a polarization-retaining anisotropic mirror and a substance with optical activity. Considering a hybrid structure comprising a metal-free polarization-preserving mirror and a cholesteric liquid crystal, we highlight the high Q factor arising from the all-dielectric framework. The intensity of localized light decreases exponentially with increasing distance from the interface. The penetration of the field into the cholesteric liquid crystal is essentially prohibited for wavelengths lying in the photonic bandgap and close to the cholesteric pitch length. The dielectric mirror has its own photonic bandgap. The energy transfer along the interface can be effectively switched off by setting the tangential wave vector to zero. The spectral behavior of the chiral optical Tamm state is observed both as reflection and transmission resonance. This Fano resonance is analogous to the Kopp-Genack effect. Our analytics are well in line with precise calculations, which may pave a new route for the future development of intelligent design for laser and sensing applications.

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“…The extraordinary dielectric permittivity axis is collinear to the LC local director. As it was geometrically demonstrated in [4], the angle ξ between the linear polarization on the mirror and the LC director at the input mirror is determined by the Napier's rule:…”

Section: Figures 2a and 2bmentioning

confidence: 99%

Polarization exchange of optical eigenmode pair in twisted-nematic Fabry-Pérot resonator

et al. 2017

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The polarization exchange effect in a twisted-nematic Fabry-Pérot resonator is experimentally confirmed in the regimes of both uniform and electric-field-deformed twisted structures. The polarization of output light in the transmission peaks is shown to be linear rather than elliptical. The polarization deflection from the nematic director grows from 0^{∘} to 90^{∘} angle and exchanges the longitudinal and transverse directions. Untwisting of a nematic by a voltage leads to the rotation of the polarization plane of light passing through the resonator. The polarization exchange effect allows using the investigated resonator as a spectral-selective linear polarizer with the voltage-controlled rotation of the polarization plane.

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Geometric phase ando-mode blueshift in a chiral anisotropic medium inside a Fabry-Pérot cavity

Cited by 12 publications

References 88 publications

Electric field-controlled transformation of the eigenmodes in a twisted-nematic Fabry–Pérot cavity

Electric field-controlled transformation of the eigenmodes in a twisted-nematic Fabry–Pérot cavity

Chiral Optical Tamm States at the Interface between an All-Dielectric Polarization-Preserving Anisotropic Mirror and a Cholesteric Liquid Crystal

Polarization exchange of optical eigenmode pair in twisted-nematic Fabry-Pérot resonator

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