Interferometry of hyper-Rayleigh scattering by inhomogeneous thin films

Fedyanin, Andrey A.; Didenko, N.V.; Sherstyuk, N. É.; Nikulin, A. A.; Aktsipetrov, O. A.

doi:10.1364/ol.24.001260

Cited by 13 publications

(6 citation statements)

References 6 publications

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“…These fluctuations of nonlinear polarization are the source of incoherent SHG, in other words the second-order hyper-Rayleigh scattering (HRS) at the SH wavelength. Generation of the diffuse and depolarized SHG is also observed for the various randomly inhomogeneous structures, such as polycrystalline ceramic films [1], Langmuir-Blodgett films [2,3], layer-bylayer assembled ferromagnetic films [4]. Strongly enhanced and diffuse SHG from rough gold films is observed recently in Ref.…”

Section: Introductionmentioning

confidence: 70%

Incoherent third and second harmonics generation and fractal structure of silver island film.

2003

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Incoherent: diffuse and depolarized, component of the enhanced third harmonic generation (THG) intensity is associated with the third-order hyper-Rayleigh scattering (HRS) in 2-D random ensemble of silver nanoparticles. A comprehensive analysis of the linear and nonlinear light scattering in combination with the results of atomic force microscopy revealed the fractal nature of the silver island films.

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Section: Introductionmentioning

confidence: 70%

Incoherent third and second harmonics generation and fractal structure of silver island film.

2003

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“…DC magnetic field was applied in the geometry of the transversal magneto-optical Kerr effect using the permanent magnets. Phase measurements of the second harmonic light were performed using an interference scheme similar to described elsewhere and a thin ITO films a sa reference source of SH light [17].…”

Section: Experimental Setup and Samplesmentioning

confidence: 99%

Second harmonic generation studies of magnetic nanogranular films exhibiting giant magnetoresistance

et al. 2003

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Nonlinear optical properties of granular magnetoresistive films are studied by second harmonic generation (SHG) technique and nonlinear magneto-optical Kerr effect (NOMOKE). For different types of granular structuresmagnetic nanoparticles in non-magnetic metallic (Co-Cu) or in a dielectric host material (CoFe-Al 2 O 3 ), a clear correlation between GMR and NOMOKE is observed, which manifests itself in the appearance of a local maximum in both the GMR and NOMOKE for the same concentration range of magnetic metal prior to the percolation threshold. This correlation apparently occurs on the macroscopic level due to the similar influence of the nanogranules structure on surface magnetization of granules which determines NOMOKE, and spindependent conductivity of the films.

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“…However, radiation corresponding to the HRLS, propagates in an arbitrary direction, whereas for the SHG it is necessary to satisfy the phase-matching conditions, 5 or specular reflection ͑in the case of surfaces or nontransparent films͒. HRLS has been applied for the investigation of inhomogeneous crystals of KH 2 PO 4 , 23 Sr 1Ϫx Ca x TaO 3 , 24 and K 1Ϫx Li x TaO 3 , 25 as well as of inhomogeneous solid films of bacteriorodopsin, 26 polycrystalline ferroelectric films of Pb x ͑Zr 0.53 Ti 0.47 ͒O 3 , 26 and Langmuir film of C 60 . 27 Recently, a phenomenological model describing the influence of dislocations on the secondorder NOS tensor was developed by Bottomley.…”

Section: Introductionmentioning

confidence: 99%

Strain-induced three-photon effects

et al. 2000

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Strain-induced three-photon effects such as optical second-harmonic generation and hyper-Rayleigh light scattering, characterized by electromagnetic radiation at the double frequency of an incident light, are phenomenologically investigated by adopting a nonlinear photoelastic interaction. The relations between the strain and the nonlinear optical susceptibility for crystal surfaces with point symmetries of 4mm and 3m are described by a symmetry analysis of the nonlinear photoelastic tensor. We theoretically demonstrate a possibility of determining the strain components by measuring the rotational anisotropy of radiation at the secondharmonic frequency. Hyper-Rayleigh light scattering by dislocation strain is also described using a nonlinear photoelastic tensor. The angular dependencies of light scattered at the double frequency of an incident light for different scattering geometries are analyzed.

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Interferometry of hyper-Rayleigh scattering by inhomogeneous thin films

Abstract: The use of specific symmetry properties of optical second-harmonic generation (the s, s-exclusion rule) has allowed us to observe high-contrast hyper-Rayleigh interference patterns in completely diffuse light, an effect that has no analog in the case of linear (Rayleigh) scattering.

Cited by 13 publications

References 6 publications

Incoherent third and second harmonics generation and fractal structure of silver island film.

Incoherent third and second harmonics generation and fractal structure of silver island film.

Second harmonic generation studies of magnetic nanogranular films exhibiting giant magnetoresistance

Strain-induced three-photon effects

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