Optical Second Harmonic Generation from Surface Segregants and Adsorbed Oxygen on an Fe-18Cr-3Mo (110) Surface

1986 ◽  
Vol 83 ◽  
Author(s):  
J. C. Hamilton ◽  
R. J. Anderson ◽  
G. W. Foltz
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Surface Segregation ◽  
Second Harmonic ◽  
High Vacuum ◽  
Ultra High Vacuum ◽  
Harmonic Intensity ◽  
Single Crystal Surfaces ◽  
Optical Second Harmonic Generation ◽  
Solid Liquid

ABSTRACTOptical second harmonic generation is a new surface diagnostic applicable both in ultra-high vacuum and ambient environments and capable of examining gas-solid, liquid-solid and solid-solid interfaces. Studies of surface segregation of chromium and nitrogen on Fe-18Cr-3Mo(II0) single crystal surfaces in ultra-high vacuum are described. Major increases in second harmonic intensity generated by 700 nm excitation at the surface are seen upon heating to temperatures at which chromium and nitrogen cosegregate. Adsorption of oxygen has also been studied on this surface. Second harmonic generation shows promise in providing structural and electronic information for surfaces and interfaces in a wide variety of environments.

Optical Second Harmonic Generation in Transparent Tellurite Glass-Ceramics Containing BaTiO3

1996 ◽  
Vol 453 ◽  
Author(s):  
Katsuhisa Tanaka ◽  
Hisako Kuroda ◽  
Kazuyuki Hirao ◽  
Naohiro Soga
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Tellurite Glass ◽  
Second Harmonic ◽  
Nonlinear Coefficient ◽  
Glass Ceramics ◽  
Lattice Parameter ◽  
Cubic Phase ◽  
Harmonic Intensity ◽  
Optical Second Harmonic Generation

AbstractOptical second harmonic generation has been observed in transparent tellurite glass-ceramics of Ba0-TiO2-TeO2 system. BaTiO3 and unidentified crystalline phase precipitate from 15BaO·15TiO2·7OTeO2 glass. The temperature of maximum rate of nucleation for these crystalline phases is estimated to be 380°C. The BaTiO3 crystal precipitated is a cubic phase with lattice parameter of 0.4045 nm, which is slightly larger than the value reported in the JCPDS cards. The optical second harmonic intensity of the present transparent tellurite glass-ceramics is comparable to the intensity of poled tellurite glasses although the BaTiO3 phase precipitated is cubic and the crystal face is randomly oriented in the glass-ceramics. For instance, the second harmonic intensity of the present transparent tellurite glass-ceramics is about twice as large as that of 20WO3·80TeO2 glass poled at 280°C under the external electric field of 3 kV, the second-order nonlinear coefficient, d33, of which is 0.10 pm/V.

Optical second harmonic generation from Langmuir-Blodgett multilayers containing preformed polymers

1988 ◽  
Vol 24 (6) ◽  
pp. 308 ◽  
Author(s):  
R.H. Tredgold ◽  
M.C.J. Young ◽  
R. Jones ◽  
P. Hodge ◽  
P. Kolinsky ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Langmuir Blodgett ◽  
Optical Second Harmonic Generation

DC-electric-field-induced optical second harmonic generation at the smooth metal-electrolyte interface

1995 ◽  
Vol 336 (1-2) ◽  
pp. 225-231 ◽  
Author(s):  
O.A. Aktsipetrov ◽  
A.V. Melnikov ◽  
T.V. Murzina ◽  
A.A. Nikulin ◽  
A.N. Rubtsov
Keyword(s):  
Electric Field ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Electrolyte Interface ◽  
Optical Second Harmonic Generation ◽  
Dc Electric Field

Highly Efficient Optical Second Harmonic Generation in Poled Ti-Doped Silica Glasses

1995 ◽  
Vol 34 (Part 1, No. 1) ◽  
pp. 175-176 ◽  
Author(s):  
Katsuhisa Tanaka ◽  
Kenichi Kashima ◽  
Kazuyuki Hirao ◽  
Naohiro Soga ◽  
Shigeru Yamagata ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Silica Glasses ◽  
Highly Efficient ◽  
Optical Second Harmonic Generation
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