scholarly journals Second harmonic generation inh-BN and MoS2monolayers: Role of electron-hole interaction

2014 ◽  
Vol 89 (8) ◽  
Author(s):  
M. Grüning ◽  
C. Attaccalite
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Electron Hole ◽  
Hole Interaction

Second Harmonic Generation-based Nonlinear Plasmonic RI-Sensing in Solution: Pivotal Role of Particle Size

2021 ◽  
Author(s):  
Mrigank Verma ◽  
Manabendra Chandra
Keyword(s):  
Particle Size ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Gold Nanorods ◽  
Second Harmonic ◽  
Solution Phase ◽  
Pivotal Role

Here, we demonstrate the utility of the second harmonic generation (SHG) for refractometric sensing in the solution phase. We employ an aqueous colloid of gold nanorods as our sensors and,...

scholarly journals Metal-Free Perovskites for Non-Linear Optical Materials

2019 ◽  
Author(s):  
Thomas W. Kasel ◽  
Zeyu Deng ◽  
Austin Mroz ◽  
Christopher H. Hendon ◽  
Keith Butler ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
First Principles Calculations ◽  
Halide Anion ◽  
Metal Free ◽  
Organic Group ◽  
Nlo Response ◽  
Earth Abundant

<div> <div> <div> <p>We identify the existence of nonlinear optical (NLO) activity in a number of novel ABX3-type metal-free perovskites, where A is a highly tuneable organic cation, B is a NH4 cation and X a halide anion. Through systematic first-principles calculations, we identify important trends to chart the second-harmonic generation of this class of materials. We study three perovskites MDABCO- NH4 I3 , CNDABCO-NH4 I3 and ODABCO-NH4 I3 for use as deep-UV second-harmonic generation materials. We identify the role of the dipole moment imparted by the organic group on the A cation as an important parameter to tune the NLO properties of these materials. We apply this knowledge functionalising the organic group DABCO with the highly polar cyanide CN group, and we demonstrate a significant improvement of the NLO response in this family of materials. These findings can accelerate the application of metal free perovskites as inexpensive, non-toxic, earth-abundant materials for the next generation of optical communication applications. </p> </div> </div> </div>

Role of optical interference effects in the enhancement of magnetization-induced second-harmonic generation

1999 ◽  
Vol 68 (3) ◽  
pp. 537-543 ◽  
Author(s):  
T.V. Murzina ◽  
A.A. Fedyanin ◽  
T.V. Misuryaev ◽  
G.B. Khomutov ◽  
O.A. Aktsipetrov
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Interference Effects ◽  
Optical Interference
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