Ambient-condition growth of high-pressure phase centrosymmetric crystalline KDP microstructures for efficient optical second harmonic generation

2016 ◽  
Author(s):  
L. Deng ◽  
E.W. Hagley ◽  
Y. Ren ◽  
X. Zhao
Keyword(s):  
High Pressure ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Ambient Condition ◽  
High Pressure Phase ◽  
Optical Second Harmonic Generation ◽  
Pressure Phase

scholarly journals Ambient-condition growth of high-pressure phase centrosymmetric crystalline KDP microstructures for optical second harmonic generation

2016 ◽  
Vol 2 (8) ◽  
pp. e1600404 ◽  
Author(s):  
Yan Ren ◽  
Xian Zhao ◽  
Edward W. Hagley ◽  
Lu Deng
Keyword(s):  
High Pressure ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Ambient Condition ◽  
Crystal Phase ◽  
Monoclinic Crystal ◽  
Single Crystalline ◽  
Type Iv ◽  
Optical Second Harmonic Generation

Noncentrosymmetric potassium dihydrogen phosphate (KH2PO4or KDP) in the tetragonal crystal phase is arguably the most extensively studied nonlinear optical crystal in history. It has prolific applications ranging from simple laser pointers to laser inertial confinement fusion systems. Recently, type IV high-pressure KDP crystal sheets with a monoclinic crystal phase having centrosymmetric properties have been observed. However, it was found that this new crystal phase is highly unstable under ambient conditions. We report ambient-condition growth of one-dimensional, self-assembled, single-crystalline KDP hexagonal hollow/solid-core microstructures that have a molecular structure and symmetry identical to the type IV KDP monoclinic crystal that was previously found to exist only at extremely high pressures (>1.6 GPa). Furthermore, we report highly efficient bulk optical second harmonic generation (SHG) from these ambient condition–grown single-crystalline microstructures, even though they have a highly centrosymmetric crystal phase. However, fundamental physics dictates that a bulk optical medium with a significant second-order nonlinear susceptibility supporting SHG must have noncentrosymmetric properties. Laue diffraction analysis reveals a weak symmetry-breaking twin-crystal lattice that, in conjunction with tight confinement of the light field by the tubular structure, is attributed to the significant SHG even with sample volumes <0.001 mm3. A robust polarization-preserving effect is also observed, raising the possibility of advanced optical technological applications.

scholarly journals High-pressure phase of LaPO4 studied by x-ray diffraction and second harmonic generation

2016 ◽  
Vol 94 (13) ◽  
Author(s):  
J. Ruiz-Fuertes ◽  
A. Hirsch ◽  
A. Friedrich ◽  
B. Winkler ◽  
L. Bayarjargal ◽  
...  
Keyword(s):  
High Pressure ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
High Pressure Phase ◽  
X Ray Diffraction ◽  
X Ray ◽  
Pressure Phase

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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