Magnetic-field-enhanced Raman scattering by confined and interface phonons in semiconductor superlattices

1987 ◽  
Vol 35 (5) ◽  
pp. 2552-2555 ◽  
Author(s):  
D. Gammon ◽  
R. Merlin ◽  
H. Morkoc
Keyword(s):  
Magnetic Field ◽  
Raman Scattering ◽  
Semiconductor Superlattices ◽  
Enhanced Raman Scattering ◽  
Interface Phonons

scholarly journals Enhanced and quenched Raman scattering by interface phonons in semiconductor superlattices: What are the defects?

1988 ◽  
Vol 4 (4-5) ◽  
pp. 405-407 ◽  
Author(s):  
D. Gammon ◽  
L. Shi ◽  
R. Merlin ◽  
G. Ambrazevicius ◽  
K. Ploog ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Semiconductor Superlattices ◽  
Interface Phonons

Suppression of coffee-ring effect via periodic oscillation of substrate for ultra-sensitive enrichment towards surface-enhanced Raman scattering

Nanoscale ◽  
2019 ◽  
Vol 11 (43) ◽  
pp. 20534-20545 ◽  
Author(s):  
Bing Ji ◽  
Lingjun Zhang ◽  
Mingzhong Li ◽  
Shuangpeng Wang ◽  
Man-Kay Law ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Raman Scattering ◽  
Periodic Oscillation ◽  
Sensitive Detection ◽  
Simple Strategy ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Functional Membrane ◽  
Enhanced Raman Scattering ◽  
Coffee Ring Effect

A novel and simple strategy with the integration of a magnetically functional membrane and reciprocating magnetic field for the improvement of the SERS uniformity and property towards the highly reliable and ultra-sensitive detection is reported.

scholarly journals Nonlinear interaction of a rippled laser beam with an electrostatic upper hybrid wave in collisional plasma

2007 ◽  
Vol 25 (2) ◽  
pp. 283-293 ◽  
Author(s):  
T.S. Gill ◽  
N.S. Saini
Keyword(s):  
Magnetic Field ◽  
Raman Scattering ◽  
Laser Beam ◽  
Collisional Plasma ◽  
Hybrid Mode ◽  
Hybrid Wave ◽  
Plasma Parameters ◽  
Scattered Power ◽  
Background Density ◽  
Enhanced Raman Scattering

In this paper, authors have studied the growing interaction of the rippled laser beam with upper hybrid mode leading to enhanced Raman scattering for collisional plasma. The presence of ripple leads to additional coupling between the rippled laser beam and electrostatic upper hybrid mode via modified background density. Computational results show the focusing of the upper hybrid wave for the chosen set of plasma parameters. With coupling being strong, the excited upper hybrid wave further interacts with rippled laser beam and give rise to enhanced Raman scattering. The significant role of collisional parameter S is also highlighted in the present investigation. An expression for the scattered power is derived and the effect of the externally applied static magnetic field on enhancement of scattered power is observed. We conclude from present analysis that the effect of the increased magnetic field is useful in suppressing the growth of the ripple.

Sign in / Sign up

Export Citation Format

Share Document