Chiral second-harmonic generation from small organic molecules at surfaces

2012 ◽  
Vol 249 (6) ◽  
pp. 1155-1159 ◽  
Author(s):  
L. Persechini ◽  
J. F. McGilp
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Organic Molecules ◽  
Second Harmonic ◽  
Small Organic Molecules

SECOND HARMONIC GENERATION IN Λ-SHAPED ORGANIC MOLECULES

2008 ◽  
Vol 17 (03) ◽  
pp. 329-338 ◽  
Author(s):  
MALYAJ DAS ◽  
RASHMI TRIVEDI ◽  
B. Q. KHATTAK ◽  
P. RAMSHANKAR ◽  
PRATIMA SEN ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Organic Molecules ◽  
Second Harmonic ◽  
Theoretical Calculations ◽  
Geometry Optimization ◽  
Polymer Chains ◽  
Diphenyl Sulfone ◽  
Active Moiety ◽  
Nlo Materials

In epoxy based polymeric nonlinear optical (NLO) materials, the nonlinear optically active moiety forms crosslink between polymer chains. Some of the important moieties include 4, 4'diamino diphenyl sulfone (DADS). We have examined second harmonic generation (SHG) in DADS and have compared it with 4, 4'diamino diphenyl methane (DADM). The geometry optimization suggests that both molecules have Λ-shaped structure. The theoretical calculations as well as experimental observations of SHG in both the molecules suggest the suitability of DADS over DADM for making polymeric NLO materials.

Second-harmonic generation from organic molecules incorporated in sol-gel matrices

1991 ◽  
Vol 1 (3) ◽  
pp. 205-220 ◽  
Author(s):  
Pascal Griesmar ◽  
Cl�ment Sanchez ◽  
Germain Puccetti ◽  
Isabelle Ledoux ◽  
Joseph Zyss
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Organic Molecules ◽  
Second Harmonic ◽  
Sol Gel

Test of directional photoionisation models of second harmonic generation in optical fibres

1992 ◽  
Vol 139 (2) ◽  
pp. 133 ◽  
Author(s):  
N.M. Lawandy ◽  
T.J. Driscoll ◽  
C.L. Adler ◽  
N.M. Lawandy
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Optical Fibres
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