scholarly journals Effect of phonon coupling on the cooperative two-photon emission from two quantum dots

2018 ◽  
Vol 98 (12) ◽  
Author(s):  
J. K. Verma ◽  
Harmanpreet Singh ◽  
P. K. Pathak
Keyword(s):  
Quantum Dots ◽  
Photon Emission ◽  
Phonon Coupling ◽  
Two Photon

Steering photon statistics in single quantum dots: From one- to two-photon emission

2013 ◽  
Vol 87 (24) ◽  
Author(s):  
G. Callsen ◽  
A. Carmele ◽  
G. Hönig ◽  
C. Kindel ◽  
J. Brunnmeier ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Photon Emission ◽  
Photon Statistics ◽  
Single Quantum ◽  
Two Photon ◽  
Single Quantum Dots

Enhancing Two-Photon Emission from Epitaxially Grown Quantum Dots with Nanoantennas

2018 ◽  
Author(s):  
Andrzej Gajewski ◽  
Karolina Słowik ◽  
Jakob Straubel ◽  
Carsten Rockstuhl
Keyword(s):  
Quantum Dots ◽  
Photon Emission ◽  
Two Photon

scholarly journals Nonlinear Absorption and Ultrafast Dynamics of Ag Nanoparticle

Photonics ◽  
2021 ◽  
Vol 8 (7) ◽  
pp. 233
Author(s):  
Jijuan Jiang ◽  
Jun Wang ◽  
Tong Wu ◽  
Yachen Gao
Keyword(s):  
Silver Nanoparticles ◽  
Time Constant ◽  
Laser Intensity ◽  
Photon Absorption ◽  
Saturable Absorption ◽  
Phonon Coupling ◽  
Saturated Absorption ◽  
Coupling Process ◽  
Two Photon Absorption ◽  
Two Photon

Resonant nonlinear optical absorption of silver nanoparticles was studied experimentally via open aperture Z-scan using 130 fs, 400 nm laser pulses. Experimental results show that, at low laser intensity, silver nanoparticles can exhibit saturated absorption. While at high laser intensity, it shows reverse saturated absorption. The saturable absorption is explained in terms of ground state plasmon bleaching, while the reverse saturable absorption is believed to be from two-photon absorption. Saturable optical intensity and two-photon absorption coefficient were obtained to be 1.3×1010 W/m2 and 3.3×10−10 m/W, respectively. The energy relaxation process of Ag nanoparticles after laser excitation was studied via pump-probe technique at 400 nm. Experimental results demonstrated that energy relaxation included electron-phonon coupling process with time constant τ1=(713±50) fs, and phonon-phonon coupling process with time constant τ2=(25.2±3) ps, respectively.

scholarly journals Wafer-Scale Epitaxial Low Density InAs/GaAs Quantum Dot for Single Photon Emitter in Three-Inch Substrate

Nanomaterials ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 930
Author(s):  
Xiaoying Huang ◽  
Rongbin Su ◽  
Jiawei Yang ◽  
Mujie Rao ◽  
Jin Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Single Photon ◽  
Growth Parameters ◽  
Life Time ◽  
Correlation Factor ◽  
Low Density ◽  
Wafer Scale ◽  
Two Photon ◽  
Gaas Quantum Dot ◽  
Highly Uniform

In this work, we successfully achieved wafer-scale low density InAs/GaAs quantum dots (QDs) for single photon emitter on three-inch wafer by precisely controlling the growth parameters. The highly uniform InAs/GaAs QDs show low density of μ0.96/μm2 within the radius of 2 cm. When embedding into a circular Bragg grating cavity on highly efficient broadband reflector (CBR-HBR), the single QDs show excellent optoelectronic properties with the linewidth of 3± 0.08 GHz, the second-order correlation factor g2(τ)=0.0322 ±0.0023, and an exciton life time of 323 ps under two-photon resonant excitation.

scholarly journals Enhanced two-photon photoluminescence assisted by multi-resonant characteristics of a gold nanocylinder

Nanophotonics ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 4009-4019
Author(s):  
Artur Movsesyan ◽  
Gwénaëlle Lamri ◽  
Sergei Kostcheev ◽  
Anke Horneber ◽  
Annika Bräuer ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Enhancement Factor ◽  
Second Harmonic ◽  
Plasmon Mode ◽  
Excitation Wavelength ◽  
Resonant System ◽  
Two Photon ◽  
Plasmon Resonances ◽  
Resonant Systems ◽  
Photoluminescence Enhancement

AbstractMulti-resonant plasmonic simple geometries like nanocylinders and nanorods are highly interesting for two-photon photoluminescence and second harmonic generation applications, due to their easy fabrication and reproducibility in comparison with complex multi-resonant systems like dimers or nanoclusters. We demonstrate experimentally that by using a simple gold nanocylinder we can achieve a double resonantly enhanced two-photon photoluminescence of quantum dots, by matching the excitation wavelength of the quantum dots with a dipolar plasmon mode, while the emission is coupled with a radiative quadrupolar mode. We establish a method to separate experimentally the enhancement factor at the excitation and at the emission wavelengths for this double resonant system. The sensitivity of the spectral positions of the dipolar and quadrupolar plasmon resonances to the ellipticity of the nanocylinders and its impact on the two-photon photoluminescence enhancement are discussed.

FEASIBILITY OF THE TWO PHOTON EMISSION ATOMIC PHOSPHOR

1996 ◽  
Vol 80 (Appendix) ◽  
pp. 339-340
Author(s):  
Makoto Toho ◽  
Hideyoshi Kimura
Keyword(s):  
Photon Emission ◽  
Two Photon

Temporal behavior of biexciton luminescence under two-photon excitation in CuCl quantum dots

2006 ◽  
Vol 119-120 ◽  
pp. 33-37 ◽  
Author(s):  
Y. Kagotani ◽  
K. Miyajima ◽  
S. Saito ◽  
M. Ashida ◽  
T. Itoh
Keyword(s):  
Quantum Dots ◽  
Temporal Behavior ◽  
Two Photon ◽  
Photon Excitation ◽  
Two Photon Excitation
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