Zobrazeno 1 - 10 of 57 pro vyhledávání: '"Kailash C Mishra"'
1
(Invited) Temperature Dependence of Nonradiative Transitions of an Excited Optical Ion in Solids Using the Proper Adiabatic Approximation
Autor: John Collins, Kailash C Mishra, Benjamin Osborn
Publikováno v: ECS Meeting Abstracts. :1966-1966
We have investigated the theory of the temperature dependence of nonradiative transitions of an optical ion in a solid from one electronic state to another using the proper adiabatic theory. The Hamiltonian, based on the nonadiabaticity operator, has
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5278567ac2ab3d4d308ac9b8fbaf05df
https://doi.org/10.1149/ma2022-02511966mtgabs
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2
(Luminescence and Display Materials Division Outstanding Achievement Award) Formulation of Radiative and Nonradiative Transitions of a Polyatomic System within Crude Adiabatic Approximation
Autor: Kailash C Mishra
Publikováno v: ECS Meeting Abstracts. :1972-1972
The theory of radiative and nonradiative transition rates has been formulated within the framework of crude adiabatic approximation for an optical ion in a solid. The basis set consists of products of electronic wavefunctions at the equilibrium nucle
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5baa997ca15f3f2efa309dfdb24c56c1
https://doi.org/10.1149/ma2022-02511972mtgabs
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5
First-Principles Study of the Crystal-Field and Racah Parameters of Cr3+ in Alumina
Autor: Kazuyoshi Ogasawara, John Collins, Kailash C. Mishra
Publikováno v: ECS Meeting Abstracts. :2735-2735
The development of blue LEDs [1] enabled one to construct white LEDs by combining them with appropriate phosphors. Recently Mn4+-doped fluorides have been put into commercial use as the red phosphors for high color-rendering white LEDs [2]. However,
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1c50b165fbd4c0847be7b01d9e564215
https://doi.org/10.1149/ma2020-02422735mtgabs
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6
Monte-Carlo Modeling of Plasmon-Mediated Ion-Ion Energy Transfer
Autor: Nicholas Sundstrom, Kailash C. Mishra, John Collins
Publikováno v: ECS Meeting Abstracts. :2737-2737
Energy transfer between donor and acceptor ions is an important phenomenon in phosphor applications. In a quantum electrodynamic formulation of the energy transfer process, the donor-acceptor interaction is mediated by photons. In the presence of a m
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c2f50ac02e39c5c12f776cca4be233dd
https://doi.org/10.1149/ma2020-02422737mtgabs
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7
Revisiting the Theory of Vibronic Transitions of Optical Ions in Solids
Autor: John Collins, Kailash C. Mishra
Publikováno v: ECS Meeting Abstracts. :2734-2734
In order to improve the performance of phosphors in lighting and display devices, one needs to understand the temperature dependence of the radiative and nonradiative processes of optical ions in solids. In this presentation, we have revisited the th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a03c47bfbc4d81c110f7e056bcf6eb6b
https://doi.org/10.1149/ma2020-02422734mtgabs
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