Efficient second-harmonic generation in novel Cerenkov type nonlinear-optical polymer waveguides

1997 ◽  
Vol 81 (1) ◽  
pp. 11-17 ◽  
Author(s):  
K. Schmitt ◽  
C. Benecke ◽  
M. Schadt
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Polymer Waveguides ◽  
Optical Polymer ◽  
Nonlinear Optical Polymer

Second-harmonic generation in poled films of nonlinear optical polymer composites

1995 ◽  
Vol 27 (5) ◽  
pp. 411-420 ◽  
Author(s):  
Sooman Lee ◽  
Byoungchoo Park ◽  
Sin-Doo Lee ◽  
Gwangseo Park ◽  
Y. D. Kim
Keyword(s):  
Second Harmonic Generation ◽  
Polymer Composites ◽  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Optical Polymer ◽  
Nonlinear Optical Polymer

In Situ Second Harmonic Generation Measurements of the Growth of Nonlinear Optical Ionically Self-Assembled Monolayers

2000 ◽  
Vol 660 ◽  
Author(s):  
C. Brands ◽  
P.J. Neyman ◽  
M.T. Guzy ◽  
S. Shah ◽  
K.E. Van Cott ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Self Assembled Monolayers ◽  
Optical Polymer ◽  
Wide Range ◽  
Assembled Monolayers ◽  
Self Assembled

ABSTRACTIonically self-assembled monolayers (ISAMs) have recently been shown to spontaneously exhibit a polar ordering that gives rise to a substantial second order nonlinear optical (NLO) response. Here, the deposition of ISAMs has been studied in situ via second harmonic generation (SHG). We show that the adsorption and ordering of a noncentrosymmetric nonlinear optical polymer is constant over a wide range of concentrations. Upon immersion in the NLO-active polyelectrolyte solution, the SHG rises sharply over the first minute. Immersion in the NLO-inactive partner polyelectrolyte leads to a reduction in the SHG signal. Furthermore, when the film is removed from the NLO-active solution and allowed to dry, the SHG increases rapidly as the water evaporates. These studies provide greater understanding of the processes by which noncentrosymmetric order is formed in ISAM films and allows design of improved self- assembled nonlinear optical materials.

QUASI-PHASE-MATCHED SECOND-HARMONIC GENERATION IN NONLINEAR OPTICAL POLYMER WAVEGUIDE

2004 ◽  
Vol 13 (03n04) ◽  
pp. 383-389 ◽  
Author(s):  
JUNG JIN JU ◽  
SEUNG KOO PARK ◽  
JUNG YUN DO ◽  
SUNTAK PARK ◽  
MIN-SU KIM ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Guided Waves ◽  
Second Harmonic ◽  
Device Fabrication ◽  
Polymer Waveguide ◽  
Material Development ◽  
Optical Polymer ◽  
Waveguide Design ◽  
Nonlinear Optical Polymer

We address issues related to quasi-phase-matched (QPM) second-harmonic generation (SHG) in nonlinear polymer waveguide for applying at optical communication. This field of research is very challenging because the high nonlinearity of polymers leads the device to operate at low pump power levels. However, key problems to this approach include difficulty of phase matching, the high propagation losses of the guided waves, and low nonlinearity contrast in the +/0 type QPM geometry. By optimizing these points on material development, waveguide design, and device fabrication, we demonstrate a QPM SHG with the best efficiency in polymer waveguide.

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