Preparation and Third-Order Optical Nonlinearity of Self-Assembled Chitosan/CdSe−ZnS Core−Shell Quantum Dots Multilayer Films

2006 ◽  
Vol 110 (4) ◽  
pp. 1566-1570 ◽  
Author(s):  
Xiaohui Wang ◽  
Yumin Du ◽  
Sha Ding ◽  
Ququan Wang ◽  
Guiguang Xiong ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Nonlinearity ◽  
Multilayer Films ◽  
Core Shell ◽  
Third Order ◽  
Self Assembled

Study of optical nonlinearity of CdSe and CdSe@ZnO core–shell quantum dots in nanosecond regime

2015 ◽  
Vol 29 (33) ◽  
pp. 1550209 ◽  
Author(s):  
Deepika ◽  
Rakesh Dhar ◽  
Devendra Mohan
Keyword(s):  
Quantum Dots ◽  
Thioglycolic Acid ◽  
Second Harmonic ◽  
Optical Nonlinearity ◽  
Index Formula ◽  
Core Shell ◽  
Optical Parameters ◽  
Strong Nonlinearity ◽  
Third Order ◽  
Optical Limiter

Thioglycolic acid capped cadmium selenide (CdSe) and CdSe@ZnO core–shell quantum dots have been synthesized in aqueous phase. The sample was characterized by UV-vis spectrophotometer, TEM and Z-scan technique. The nonlinear optical parameters viz. nonlinear absorption coefficient [Formula: see text], nonlinear refractive index [Formula: see text] and third-order nonlinear susceptibilities [Formula: see text] of quantum dots have been estimated using second harmonic of Nd:YAG laser. The study predicts that CdSe@ZnO quantum dots exhibits strong nonlinearity as compared to core CdSe quantum dots. The nonlinearity in quantum dots is attributed to the presence of resonant excitation and free optical processes. The presence of RSA in these nanoparticles makes them a potential material for the development of optical limiter.

scholarly journals Exciton footprint of self-assembled AlGaAs quantum dots in core-shell nanowires

2014 ◽  
Vol 90 (7) ◽  
Author(s):  
Yannik Fontana ◽  
Pierre Corfdir ◽  
Barbara Van Hattem ◽  
Eleonora Russo-Averchi ◽  
Martin Heiss ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Core Shell ◽  
Self Assembled ◽  
Shell Nanowires

Third order optical nonlinearity investigation of germanium quantum dots embedded in silica matrix

2017 ◽  
Author(s):  
Liangmin Zhang ◽  
David Bishel ◽  
William Cheung ◽  
Joseph Mini ◽  
Salvador Montes ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Nonlinearity ◽  
Silica Matrix ◽  
Third Order ◽  
Germanium Quantum Dots

scholarly journals Large Resonant Third-order Optical Nonlinearity of CdSe Nanocrystal Quantum Dots

2006 ◽  
Vol 38 ◽  
pp. 91-94 ◽  
Author(s):  
JaeTae Seo ◽  
SeongMin Ma ◽  
Qiguang Yang ◽  
Linwood Creekmore ◽  
Russell Battle ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Nonlinearity ◽  
Third Order ◽  
Nanocrystal Quantum Dots
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