Surface plasmon polaritons in metallo-dielectric meander-type gratings

Akimov, Alexey; Vengurlekar, A. S.; Weiß, Thomas; Gippius, N. A.; Tikhodeev, S. G.

doi:10.1134/s0021364009170093

Cited by 6 publications

(3 citation statements)

References 12 publications

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“…1-7,9 Therefore, PCs and quasi-PCs could be used in various applications, including waveguiding [13][14][15][16] and PC fibers, [17][18][19][20][21] for optical supercontinuum generation, [22][23][24][25][26] nonlinear light conversion, high-harmonic generation, and active media pumping. [27][28][29][30][31][32][33][34][35][36] Recently, the surface electromagnetic modes of the PC and surface Bloch waves [37][38][39][40][41][42][43][44][45][46][47][48][49][50][51][52][53]67,68 have attracted much interest in the scientific community. The light modes localized inside the PC volume 54-61 and many-body effects inside PC structures [62][63][64][65] are also prospective topics for fundamental and applied research.…”

mentioning

confidence: 99%

Band-gap nonlinear optical generation: The structure of internal optical field and the structural light focusing

Zaytsev

Katyba

Yakovlev

et al. 2014

Journal of Applied Physics

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A novel approach for the enhancement of nonlinear optical effects inside globular photonic crystals (PCs) is proposed and systematically studied via numerical simulations. The enhanced optical harmonic generation is associated with two- and three-dimensional PC pumping with the wavelength corresponding to different PC band-gaps. The interactions between light and the PC are numerically simulated using the finite-difference time-domain technique for solving the Maxwell's equations. Both empty and infiltrated two-dimensional PC structures are considered. A significant enhancement of harmonic generation is predicted owing to the highly efficient PC pumping based on the structural light focusing effect inside the PC structure. It is shown that a highly efficient harmonic generation could be attained for both the empty and infiltrated two- and three-dimensional PCs. We are demonstrating the ability for two times enhancement of the parametric decay efficiency, one order enhancement of the second harmonic generation, and two order enhancement of the third harmonic generation in PC structures in comparison to the nonlinear generations in appropriate homogenous media. Obviously, the nonlinear processes should be allowed by the molecular symmetry. The criteria of the nonlinear process efficiency are specified and calculated as a function of pumping wavelength position towards the PC globule diameter. Obtained criterion curves exhibit oscillating characteristics, which indicates that the highly efficient generation corresponds to the various PC band-gap pumping. The highest efficiency of nonlinear conversions could be reached for PC pumping with femtosecond optical pulses; thus, the local peak intensity would be maximized. Possible applications of the observed phenomenon are also discussed.

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confidence: 99%

Band-gap nonlinear optical generation: The structure of internal optical field and the structural light focusing

Zaytsev

Katyba

Yakovlev

et al. 2014

Journal of Applied Physics

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“…However, the eigenmodes are excited by a wave with real κ and ω. Therefore, at least one of the two numbers should be assumed to be real, depending on the specific problem [72,73]. In this paper, we consider the case where a plane wave is incident on an infinite periodic structure.…”

Section: A Giant Transverse Kerr Effect In Magnetoplasmonic Crystalsmentioning

confidence: 99%

Hybrid structures of magnetic semiconductors and plasmonic crystals: a novel concept for magneto-optical devices [Invited]

et al. 2012

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We propose here to combine magnetic semiconductors and plasmonic crystals to obtain a new class of devices, in which magneto-optical effects are dramatically enhanced. So far we have studied the two building blocks separately, and we demonstrate here features of these systems that make them appealing for combination. Namely, for magnetic semiconductors we demonstrate efficient tools for manipulating their magnetization. In particular, we show that in paramagnetic (Ga,Mn)As the magnetic ions can be oriented optically. For ferromagnetic (Ga,Mn)As an ultrafast strain pulse moves the magnetization out of its equilibrium position, inducing a subsequent precessional motion about the equilibrium orientation. For plasmonic crystals, on the other hand, we show that the magnetooptical effects are dramatically enhanced in both reflection and transmission. From combining the two systems, we expect to be able to obtain magneto-optical materials that can be controlled efficiently through manipulation of the magnetization of the magnetic semiconductor onto which the plasmonic crystal is deposited.

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“…2, we calculated the complex fre quencies of the grating eigenmodes with the use of the scattering matrix method. This method implies calcu lation of the poles of the analytic continuation of the scattering matrix of the diffraction grating as a func tion of the frequency [16][17][18]. The scattering matrix of the grating was calculated with the use of the stable scheme considered in [16,14].…”

Section: Integration Of Optical Pulses By Resonant Diffraction Gratingsmentioning

confidence: 99%

Integration of optical pulses by resonant diffraction gratings

2012

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Optical components for integration [1][2][3][4] and dif ferentiation [5][6][7] of optical pulses are of great interest for numerous applications including optical ultrafast information processing, optical computing, optical image recognition and coding, and formation of pulses of a specified time profile [5]. Integration (dif ferentiation) of an optical pulse is understood as inte gration (differentiation) of its envelope. At present, pulse integration and differentiation is accomplished with the use of various versions of Bragg gratings [1][2][3][4][5]. The longitudinal size of Bragg gratings for integra tion of picosecond pulses ranges from millimeters to centimeters.In our previous works [6,7], we showed that reso nance diffraction gratings provide differentiation of optical pulses. The differentiation occurs near the res onance frequencies, associated with the excitation of quasiguided eigenmodes of the grating. In this work, we demonstrate for the first time the capability of a resonant diffraction grating to integrate optical pulses. For applications, it is important that the resonant dif fraction gratings have a much smaller longitudinal size (from fractions of a micron to several microns) com pared to Bragg structures.Let us consider an optical pulse with central fre quency ω 0 and envelope P inc (t) propagating along the Oz axis. The pulse field has the form (1)is the x or y component of the electric field depending on the polarization, k(ω) = ω/c is the wavenumber, v g = c/ is the group velocity, ε is the dielectric constant of the medium, and G(ω) is the spectrum of the pulse envelope.Let the pulse be normally incident on the diffrac tion grating (Fig. 1). The envelope of the transmitted pulse in the zeroth diffraction order takes the form (2) where T(ω) is the complex transmittance (the com plex amplitude of the transmitted zeroth diffraction order) as a function of the frequency. According to Eq. (2), the transformation of the envelope of the inci ε εThe possibility of integrating optical pulses by resonant diffraction gratings has been considered. It has been shown that a diffraction grating provides integration of the pulse envelope in the vicinity of quasiguided mode resonances. The integration is performed with an exponential weight function, whose decay rate is deter mined by the quality factor of the resonance. Metallic diffraction gratings for integration of picosecond pulses have been computed. The calculation of the grating eigenmodes with the use of the scattering matrix method has shown that the integration is performed in the vicinity of the resonances corresponding to the excitation of surface plasmon polaritons at the grating boundary. According to the results of numerical simulation, the integration quality is quite high. Fig. 1. Geometry of the diffraction grating. The parame ters of the grating at ε sub = 1 are period d = 1540 nm, height h = 90 nm, and slit width a = 185 nm. The param eters of the grating at ε sub = 2.09 are d = 1070 nm, h = 110 nm, and a = 20 nm. gr tr

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Surface plasmon polaritons in metallo-dielectric meander-type gratings

Cited by 6 publications

References 12 publications

Band-gap nonlinear optical generation: The structure of internal optical field and the structural light focusing

Band-gap nonlinear optical generation: The structure of internal optical field and the structural light focusing

Hybrid structures of magnetic semiconductors and plasmonic crystals: a novel concept for magneto-optical devices [Invited]

Integration of optical pulses by resonant diffraction gratings

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