Second-Harmonic Generation from a Magnetic Buried Interface Enhanced by an Interplay of Surface Plasma Resonances

ACS Photonics ◽  
2015 ◽  
Vol 2 (1) ◽  
pp. 20-26 ◽  
Author(s):  
Ilya Razdolski ◽  
Sergii Parchenko ◽  
Andrzej Stupakiewicz ◽  
Sergey Semin ◽  
Alexander Stognij ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Surface Plasma

scholarly journals Second Harmonic Generation Induced by Surface Plasma Wave on Metallic Surface in the Presence of Wiggler Magnetic Field

2021 ◽  
Author(s):  
Harleen Kaur Dua ◽  
Niti Kant ◽  
Vishal Thakur
Keyword(s):  
Magnetic Field ◽  
Second Harmonic Generation ◽  
Plasma Wave ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Attenuated Total Reflection ◽  
Metallic Surface ◽  
Surface Plasma ◽  
Semiconductor Interface ◽  
Wiggler Magnetic Field

Abstract Under the influence of wiggler magnetic field, the phenomenon of second harmonic generation at the metal-semiconductor interface, induced by surface plasma wave (SPW) has been investigated. Metals like Cu, Ag and Al, each with a thin layer of n-InSb over it, are considered for our study. Laser light is incident on metal layered on glass prism in attenuated total reflection Kretschmann configuration (ATR) which generates SPW. The SPW further interacts nonlinearly with the electrons of n-type semiconductor layered over the metal, leading to second harmonic generation (SHG). The presence of an external wiggler magnetic field makes the process resonant and helps in phase matching. Relatively more enhancement in the amplitude of the second harmonic is observed for Cu-InSb as compared to Ag-InSb and Al-InSb. Numerical analysis shows that the enhancement in the amplitude of SHG increases with the wiggler magnetic field.

scholarly journals Functional 2D nanomaterials for optoelectronic equipment on the basis of langmuir–blodgett bacteriorhodopsin films

2016 ◽  
Vol 19 (2) ◽  
pp. 124-132
Author(s):  
S. I. Valyanskii ◽  
E. K. Naimi ◽  
L. V. Kozhitov
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Plasma Waves ◽  
Surface Plasma ◽  
Langmuir Blodgett ◽  
Surface Plasma Waves ◽  
Langmuir Blodgett Films ◽  
Monomolecular Layers

We have tested the possibility of using monomolecular layers of bacteriorhodopsin (BR) for the synthesis of highly sensitive and highly selective sensors based on second harmonic generation and surface plasma waves. We have used various methods to study the optical and nonlinear optical properties of Langmuir-Blodgett films of BR in order to clarify the extent to which specific properties of BR molecules are retained during their transfer from the surface of water to a solid substrate. We show that the second harmonic generation method is efficient for analyzing the molecular orientation and quality of Langmuir-Blodgett films. The experimental nonlinear optical susceptibility of second order BR molecules is 3.4 · 10-11m/V. The relative change in the resonant wave vector is (3.6 ± 0.1)·10-2at an excitation light wavelength of 630 nm. We have obtained a BR spectrum with the effective excitation by incident radiation of surface plasma waves. On the basis of these studies, we have proposed new schemes of biosensors operating on the basis of second harmonic generation and surface plasma resonance caused by fundamental frequency reflection from BR monomolecular layers. This scheme was tested for a model device and demonstrated the possibility of obtaining sensitivities of the order of 1011molecules/cm3.

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
Sign in / Sign up

Export Citation Format

Share Document