Nonlinear Magneto-Optical Kerr Effect in Gd-Containing Langmuir-Blodgett Films

AbstractMagnetization induced second harmonic generation (MSHG) is observed in Gd-containing Langmuir-Blodgett (LB) films. The nonlinear optical studies reveal significant alterations in the second harmonic generation (SHG) intensity and in the polarization and phase of the second harmonic (SH) wave induced by application of DC magnetic field. The violation of polarization selection rules and the diffusenes of the MSHG intensity indicates the inhomogeneity of LB structure and the hyper-Rayleigh scattering mechanism of MSHG. The latter proofs the existence of 2D-islands of Gd ions in the structural unit of the LB films which is composed by monolayer of rare-earth ions compressed between two layers of stearic acid molecules.

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SECOND ORDER NONLINEAR OPTICAL PROPERTIES OF LANGMUIR–BLODGETT FILMS CONSISTING OF NON-AMPHIPHILIC POLAR MOLECULES

Journal of Nonlinear Optical Physics & Materials ◽

10.1142/s0218863504001979 ◽

2004 ◽

Vol 13 (03n04) ◽

pp. 355-358 ◽

Cited By ~ 2

Author(s):

JUN KAWAMATA ◽

SHOICHIRO HIRAKAWA ◽

SEIJI TANI ◽

YUICHIRO OGATA ◽

AKIHIKO YAMAGISHI

Keyword(s):

Optical Properties ◽

Second Harmonic Generation ◽

Harmonic Generation ◽

Nonlinear Optical ◽

Second Harmonic ◽

Single Layer ◽

Lb Films ◽

Langmuir Blodgett ◽

Solid Substrates ◽

Langmuir Blodgett Films

We have prepared hybrid Langmuir–Blodgett (LB) films consisting of a clay single layer and a non-amphiphilic polar molecule, 2,5-bis(p-dimethylaminocinnamylidene)-cyclopentanone. LB films deposited on solid substrates were characterized by means of UV-vis absorption spectroscopy and optical second-harmonic generation (SHG) measurements.

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Second-harmonic generation spectroscopy and hyper-Rayleigh scattering in Langmuir-Blodgett films of fullerenes

Surface Science ◽

10.1016/s0039-6028(97)00193-3 ◽

1997 ◽

Vol 382 (1-3) ◽

pp. L696-L699 ◽

Cited By ~ 8

Author(s):

E.D. Mishina ◽

A.A. Fedyanin ◽

D. Klimkin ◽

A.A. Nikulin ◽

O.A. Aktsipetrov ◽

...

Keyword(s):

Second Harmonic Generation ◽

Harmonic Generation ◽

Rayleigh Scattering ◽

Second Harmonic ◽

Langmuir Blodgett ◽

Langmuir Blodgett Films ◽

Second Harmonic Generation Spectroscopy

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Interferometry of Optical Second Harmonic Generation from Gd-Containing Langmuir-Blodgett Superstructures: Magneto-Induced Effects

MRS Proceedings ◽

10.1557/proc-577-421 ◽

1999 ◽

Vol 577 ◽

Author(s):

E.I. Vishnevskaya ◽

N.V. Didenko ◽

A.A. Fedyanin ◽

G.B. Khomutov ◽

T V. Murzina ◽

...

Keyword(s):

Second Harmonic Generation ◽

Harmonic Generation ◽

Kerr Effect ◽

Rayleigh Scattering ◽

Second Harmonic ◽

Optical Kerr Effect ◽

Nonlinear Polarization ◽

Langmuir Blodgett ◽

Magnetic Origin ◽

Magneto Optical Kerr Effect

ABSTRACTNonlinear magneto-optical Kerr effect in Gd-containing Langmuir-Blodgett superstructures is studied by second harmonic generation (SHG) interferometry. The intensity of the regular magneto-induced second harmonic (SH) is found to be by a factor of about 2 larger than the intensity of the regular SH component of a non-magnetic origin. The phase shift between the magneto-induced and non-magnetic contributions to the nonlinear polarization is about 46° The intensity of the magnetization-independent hyper-Rayleigh scattering (HRS) is by two orders larger than that of mnagneto-induced HRS.

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