Size Dependence of the Spontaneous Emission Rate and Absorption Cross Section of CdSe and CdTe Quantum Dots

2009 ◽  
Vol 113 (16) ◽  
pp. 6511-6520 ◽  
Author(s):  
Celso de Mello Donegá ◽  
Rolf Koole
Keyword(s):  
Quantum Dots ◽  
Cross Section ◽  
Spontaneous Emission ◽  
Absorption Cross Section ◽  
Size Dependence ◽  
Emission Rate ◽  
Cdte Quantum Dots ◽  
Absorption Cross ◽  
Spontaneous Emission Rate

The Empirical Correlation Between Size and Two-Photon Absorption Cross Section of CdSe and CdTe Quantum Dots

Small ◽  
2006 ◽  
Vol 2 (11) ◽  
pp. 1308-1313 ◽  
Author(s):  
Shih-Chieh Pu ◽  
Meng-Ju Yang ◽  
Cheng-Chih Hsu ◽  
Chih-Wei Lai ◽  
Cheng-Chih Hsieh ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Cross Section ◽  
Absorption Cross Section ◽  
Empirical Correlation ◽  
Cdte Quantum Dots ◽  
Photon Absorption ◽  
Absorption Cross ◽  
Two Photon Absorption ◽  
Two Photon

On the determination of absorption cross section of colloidal lead halide perovskite quantum dots

2019 ◽  
Vol 151 (15) ◽  
pp. 154706 ◽  
Author(s):  
Joseph Puthenpurayil ◽  
Oscar Hsu-Cheng Cheng ◽  
Tian Qiao ◽  
Daniel Rossi ◽  
Dong Hee Son
Keyword(s):  
Quantum Dots ◽  
Cross Section ◽  
Absorption Cross Section ◽  
Absorption Cross ◽  
Perovskite Quantum Dots ◽  
Halide Perovskite ◽  
Colloidal Lead ◽  
Lead Halide

Optical absorption cross section of quantum dots

2004 ◽  
Vol 16 (35) ◽  
pp. S3749-S3756 ◽  
Author(s):  
S W Osborne ◽  
P Blood ◽  
P M Smowton ◽  
Y C Xin ◽  
A Stintz ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Absorption ◽  
Cross Section ◽  
Absorption Cross Section ◽  
Absorption Cross

Judd–Ofelt spectroscopic study of Mg/Er-codoped near-stoichiometric LiNbO3 crystals for integrated optics

2010 ◽  
Vol 25 (11) ◽  
pp. 2101-2110 ◽  
Author(s):  
De-Long Zhang ◽  
Hui Zheng ◽  
Edwin Yue-Bun Pun
Keyword(s):  
Cross Section ◽  
Absorption Cross Section ◽  
Emission Rate ◽  
Radiative Lifetime ◽  
Damage Threshold ◽  
Spectroscopic Properties ◽  
Absorption Cross ◽  
Optical Damage ◽  
Crystal Composition ◽  
Radiative Quantum Efficiency

Near-stoichiometric (NS) (Mg:)Er:LiNbO3 crystals were grown from melts containing 0.0/0.5, 0.5/0.5, and 1.0/0.5 mol%/mol% MgO/Er2O3. Crystal composition and optical properties studies show that the Li2O contents in these crystals increase all by ∼1 mol% relative to the congruent point. The 1.0 mol% MgO-doped NS crystal is just near optical damage threshold and withstands a 488 nm light intensity >0.74 MW/cm2 without optical damage. Unpolarized absorption spectra of these NS crystals were measured, and the Er3+ absorption cross-section spectra were determined. The Er3+ spectroscopic properties were studied by Judd–Ofelt theory. The results show that as the crystal composition approaches the stoichiometry, the Er3+ spectroscopic properties change definitely. The Er3+ ion in the NS crystal has smaller absorption cross section and hence weaker oscillator strength, lower emission rate, and longer radiative lifetime. Nevertheless, the radiative quantum efficiency is retained. In addition, the MgO codoping has less effect on the Er3+ spectroscopic properties.

Absorption Cross-Section and Related Optical Properties of Colloidal InAs Quantum Dots

2005 ◽  
Vol 109 (15) ◽  
pp. 7084-7087 ◽  
Author(s):  
Pingrong Yu ◽  
Matthew C. Beard ◽  
Randy J. Ellingson ◽  
Suzanne Ferrere ◽  
Calvin Curtis ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Cross Section ◽  
Absorption Cross Section ◽  
Absorption Cross ◽  
Inas Quantum Dots

Amplification of spontaneous emission and gain measurement in dye amplifiers

1981 ◽  
Vol 59 (6) ◽  
pp. 820-834 ◽  
Author(s):  
T. Efthimiopoulos ◽  
B. K. Garside
Keyword(s):  
Cross Section ◽  
Spontaneous Emission ◽  
Absorption Cross Section ◽  
Singlet State ◽  
Wavelength Dependence ◽  
Rate Equations ◽  
Absorption Cross ◽  
Excited Singlet ◽  
Spectral Narrowing ◽  
Gain Measurement

A comparison is reported of the observed spectral narrowing of amplified spontaneous emission from dye amplifiers with predictions from a dynamical model based on rate equations. This is employed to develop a generally applicable method of determining the unsaturated gain within the dye medium. Comparison is made with another technique for determining gain over the restricted pumping range for which it is applicable. The matching of theory to experiment is sufficiently sensitive that good values can also be determined for the wavelength dependence of the excited singlet state absorption cross section.

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