scholarly journals Enhanced third-order nonlinear processes based on Raman resonance

2020 ◽  
Vol 69 (16) ◽  
pp. 164203
Author(s):  
Li-Ya Pei
Keyword(s):  
Nonlinear Processes ◽  
Third Order ◽  
Raman Resonance

GIANT THIRD-ORDER KERR NONLINEARITIES AND SLOW OPTICAL SOLITONS IN DOUBLE QUANTUM-WELL

2010 ◽  
Vol 24 (17) ◽  
pp. 1899-1905
Author(s):  
XUN XIAO
Keyword(s):  
Quantum Wells ◽  
Probe Pulse ◽  
Optical Solitons ◽  
Double Quantum ◽  
Third Order ◽  
Raman Resonance ◽  
Linear Absorption ◽  
Two Photon ◽  
Double Quantum Well ◽  
Slow Group

We show the formation of slow optical solitons in the asymmetric coupled double quantum wells (CQW) via a two-photon Raman resonance. With the consideration of real parameters in AlGaAs -based CQW, we indicate the possibility to have cancelation of the linear absorption, giant Kerr nonlinearities, and slow group velocity propagation of the weak probe pulse at the same one-photon detuning frequency around several THz .

Third-order nonlinear processes at anapole modes in all-dielectric germanium nanoantennas (Conference Presentation)

2018 ◽  
Author(s):  
Yi Li ◽  
Gustavo Grinblat ◽  
Michael P. Nielsson ◽  
Rupert F. Oulton ◽  
Stefan A. Maier
Keyword(s):  
Nonlinear Processes ◽  
Third Order

Tunable Continuous‐Variable Tripartite Entanglement via Cascaded Third‐Order Nonlinear Processes in a Ring Cavity

2021 ◽  
pp. 2100396
Author(s):  
Feng Wen ◽  
Sijia Hui ◽  
Shaowei Zhang ◽  
Zhenkun Wu ◽  
Zongchen Liu ◽  
...  
Keyword(s):  
Ring Cavity ◽  
Continuous Variable ◽  
Nonlinear Processes ◽  
Tripartite Entanglement ◽  
Third Order

COHERENT TRANSIENTS OF PSEUDOISOCYANINE J AGGREGATES: VIRTUAL EXCITONS IN THE INTERMEDIATE EXCITON-PHONON INTERACTION SYSTEM

2001 ◽  
Vol 15 (28n30) ◽  
pp. 3944-3947
Author(s):  
F. SASAKI ◽  
T. KATO ◽  
S. KOBAYASHI
Keyword(s):  
Nonlinear Susceptibility ◽  
Pump Light ◽  
Light Spectrum ◽  
Phonon Interaction ◽  
Third Order ◽  
Raman Resonance ◽  
Pump Probe ◽  
The Third ◽  
J Aggregates ◽  
Third Order Nonlinear Susceptibility

Results of picosecond and nanosecond pump-probe experiments are reported in pseudoisocyanine J aggregates near the inverse Raman resonance. Reflecting the width of the pump-light spectrum, the inverse Raman term dominates the nonlinear absorption spectra in the nanosecond experiments. We find at least four Raman lines around 170 meV, that are not resolved in the picosecond experiments. The observed spectra agree well with the calculated spectra based on the third order nonlinear susceptibility with four Raman lines.

Probe size and 5th-order aberration

1987 ◽  
Vol 45 ◽  
pp. 134-135 ◽  
Author(s):  
Zhifeng Shao
Keyword(s):  
Electron Probe ◽  
Spherical Aberration ◽  
Wave Length ◽  
Cylindrical Symmetry ◽  
Electron Wave ◽  
Third Order ◽  
The Third ◽  
Probe Radius ◽  
Small Probe ◽  
Probe Size

A small electron probe has many applications in many fields and in the case of the STEM, the probe size essentially determines the ultimate resolution. However, there are many difficulties in obtaining a very small probe.Spherical aberration is one of them and all existing probe forming systems have non-zero spherical aberration. The ultimate probe radius is given byδ = 0.43Csl/4ƛ3/4where ƛ is the electron wave length and it is apparent that δ decreases only slowly with decreasing Cs. Scherzer pointed out that the third order aberration coefficient always has the same sign regardless of the field distribution, provided only that the fields have cylindrical symmetry, are independent of time and no space charge is present. To overcome this problem, he proposed a corrector consisting of octupoles and quadrupoles.

Children’s Recall of Approximations to English

1973 ◽  
Vol 16 (2) ◽  
pp. 201-212 ◽  
Author(s):  
Elizabeth Carrow ◽  
Michael Mauldin
Keyword(s):  
Language Development ◽  
Fourth Order ◽  
Third Order ◽  
Memory Processes ◽  
The Third ◽  
General Index ◽  
General Linguistic

As a general index of language development, the recall of first through fourth order approximations to English was examined in four, five, six, and seven year olds and adults. Data suggested that recall improved with age, and increases in approximation to English were accompanied by increases in recall for six and seven year olds and adults. Recall improved for four and five year olds through the third order but declined at the fourth. The latter finding was attributed to deficits in semantic structures and memory processes in four and five year olds. The former finding was interpreted as an index of the development of general linguistic processes.

The influence of third-order interactions on the density profile of associating hard spheres

1997 ◽  
Vol 91 (4) ◽  
pp. 761-767 ◽  
Author(s):  
D. HENDERSON ◽  
S. SOKOŁOWSKI ◽  
R. ZAGORSKI ◽  
A. TROKHYMCHUK
Keyword(s):  
Density Profile ◽  
Hard Spheres ◽  
Third Order
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