Reducing the Optical Gain Threshold in Two-Dimensional CdSe Nanoplatelets by the Giant Oscillator Strength Transition Effect

2019 ◽  
Vol 10 (7) ◽  
pp. 1624-1632 ◽  
Author(s):  
Qiuyang Li ◽  
Qiliang Liu ◽  
Richard D. Schaller ◽  
Tianquan Lian
Keyword(s):  
Oscillator Strength ◽  
Optical Gain ◽  
Two Dimensional ◽  
Transition Effect ◽  
Gain Threshold

Absorption and Emission of Light in Quantum Structures

2020 ◽  
pp. 343-418
Author(s):  
Vurgaftman Igor
Keyword(s):  
Quantum Wells ◽  
Radiative Recombination ◽  
Quantum Wires ◽  
Incident Light ◽  
Optical Gain ◽  
Two Dimensional ◽  
Intersubband Transitions ◽  
Recombination Rates ◽  
Zinc Blende ◽  
Two Dimensional Materials

This chapter shows how to calculate the absorption coefficient, optical gain, and radiative recombination rates in quantum wells and superlattices. A detailed treatment of both interband and intersubband transitions is presented, and their differences and similarities are considered in detail. The optical properties of wurtzite quantum wells and zinc-blende quantum wires and dots are also discussed. Finally, the interaction of excitonic transitions with incident light in quantum wells is considered as a model for other two-dimensional materials.

Reduction of Optical Gain Threshold in CsPbI3 Nanocrystals Achieved by Generation of Asymmetric Hot-Biexcitons

Nano Letters ◽  
2020 ◽  
Vol 20 (5) ◽  
pp. 3905-3910 ◽  
Author(s):  
Etsuki Kobiyama ◽  
Hirokazu Tahara ◽  
Ryota Sato ◽  
Masaki Saruyama ◽  
Toshiharu Teranishi ◽  
...  
Keyword(s):  
Optical Gain ◽  
Gain Threshold

Analysis of optical gain threshold in n-doped and tensile-strained germanium heterostructure diodes

2015 ◽  
Vol 118 (12) ◽  
pp. 125704 ◽  
Author(s):  
M. Prost ◽  
M. El Kurdi ◽  
F. Aniel ◽  
N. Zerounian ◽  
S. Sauvage ◽  
...  
Keyword(s):  
Optical Gain ◽  
Gain Threshold

Diamagnetic shift and oscillator strength of two-dimensional excitons under a magnetic field inIn0.53Ga0.47As/InP quantum wells

1993 ◽  
Vol 48 (12) ◽  
pp. 8848-8856 ◽  
Author(s):  
Mitsuru Sugawara ◽  
Niroh Okazaki ◽  
Takuya Fujii ◽  
Susumu Yamazaki
Keyword(s):  
Magnetic Field ◽  
Quantum Wells ◽  
Oscillator Strength ◽  
Two Dimensional ◽  
Diamagnetic Shift

Optical Gain from Biexcitons in CsPbBr3 Nanocrystals Revealed by Two-dimensional Electronic Spectroscopy

2019 ◽  
Vol 10 (6) ◽  
pp. 1251-1258 ◽  
Author(s):  
Wei Zhao ◽  
Zhengyuan Qin ◽  
Chunfeng Zhang ◽  
Guodong Wang ◽  
Xinyu Huang ◽  
...  
Keyword(s):  
Electronic Spectroscopy ◽  
Optical Gain ◽  
Two Dimensional

scholarly journals Ultrafast carrier interactions in metal-halide perovskites probed with two-dimensional electronic spectroscopy

2019 ◽  
Vol 205 ◽  
pp. 04012
Author(s):  
M. Richter Johannes ◽  
Federico Branchi ◽  
V. A. Camargo Franco ◽  
Tetsuhiko Nagahara ◽  
Baodan Zhao ◽  
...  
Keyword(s):  
Oscillator Strength ◽  
Strong Coupling ◽  
Electronic Spectroscopy ◽  
Excitation Density ◽  
Two Dimensional ◽  
Density Dependent ◽  
Carrier Scattering ◽  
Ultrafast Carrier ◽  
Halide Perovskites ◽  
Excitonic States

We use 2D electronic spectroscopy with sub-10-fs resolution to probe carrier-carrier scattering in perovskites. We report excitation-density dependent thermalization times below 100-fs. Strong coupling with excitonic states further reveals sub-bandgap states with low oscillator strength.

scholarly journals High oscillator strength interlayer excitons in two-dimensional heterostructures for mid-infrared photodetection

2020 ◽  
Vol 15 (8) ◽  
pp. 675-682 ◽  
Author(s):  
Steven Lukman ◽  
Lu Ding ◽  
Lei Xu ◽  
Ye Tao ◽  
Anders C. Riis-Jensen ◽  
...  
Keyword(s):  
Oscillator Strength ◽  
Two Dimensional ◽  
Mid Infrared ◽  
Infrared Photodetection
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