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Phonon-assisted upconversion photoluminescence with high thermal sensitivity of rare-earth doped nanoparticles in vacuum optical tweezers

Xiaojun Guo, Yanzhen Xiao, Xiangtai Xi +5 more

Physical review. B./Physical review. BSep 4, 20256 citations

Nano-arrays of optically addressable rare-earth-doped semiconductor quantum dots for quantum computing

Aras Konjhodzic, Muhammed Aly, Deepka Chhabria +3 more

Results have been presented on isolating rare earth atoms in small numbers in semiconductor nanoparticles so as to use their organized arrays as hardware for quantum computing. We have tailored atomic states of rare earths, fabricated nanoparticles where these atomic systems are incorporated in small numbers and have patterned arrays of nano-holes on semi-conducting and polymer surfaces to encapsulate these rare earth doped nanoparticles. Results are presented on fabrication, microscopy and spectroscopy of these structures.Results have been presented on isolating rare earth atoms in small numbers in semiconductor nanoparticles so as to use their organized arrays as hardware for quantum computing. We have tailored atomic states of rare earths, fabricated nanoparticles where these atomic systems are incorporated in small numbers and have patterned arrays of nano-holes on semi-conducting and polymer surfaces to encapsulate these rare earth doped nanoparticles. Results are presented on fabrication, microscopy and spectroscopy of these structures.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIEJun 17, 20040 citations

Coherence properties of photoluminescence from rare earth doped nanoparicles

K Anjana, Supervisor Dr. Bhavtosh Bansal

Measurements to estimate the spatial coherence of the electroluminescence signal from a commercial LED and upconverted photoluminescence signal from doped NaGdF₄ nanoparticles were done using Young's double slit setup. Experiments were performed with various slit sizes and the visibility of the interference fringes was observed. Part of the thesis work also involved examining the feasibility of using a spatial light modulator as an optical element in diffraction and interference experiments.Measurements to estimate the spatial coherence of the electroluminescence signal from a commercial LED and upconverted photoluminescence signal from doped NaGdF₄ nanoparticles were done using Young's double slit setup. Experiments were performed with various slit sizes and the visibility of the interference fringes was observed. Part of the thesis work also involved examining the feasibility of using a spatial light modulator as an optical element in diffraction and interference experiments.

Apr 1, 20170 citations

All-Optical Control of Long-lived Spin Coherences in Rare Earth Doped Nanoparticules

Diana Serrano, Jenny Karlsson, Alexandre Fossati +2 more

We measured nuclear spin coherence lifetimes up to several milliseconds in Eu3+ doped Y2O3 nanoparticles using all-optical techniques. Combined with narrow optical linewidths, this opens the way to nanoscale light-atom-spin interfaces at the quantum level.

Conference on Lasers and Electro-OpticsJan 1, 20180 citations

Quantum statistical studies of superfluorescence and subfluorescence in rare earth doped upconverting nanocrystals

Shuang Fang Lim, Rene Ganoe, Robert E. Riehn +3 more

Ultrafast Nonlinear Imaging and SpectroscopySep 16, 20250 citations

Optical line broadening mechanisms in rare-earth doped oxide nanocrystals

Alexandre Fossati, Diana Serrano, Shuping Liu +3 more

Journal of LuminescenceJul 7, 20238 citations

Topology-controlled Polarized Photoluminescence from Rare-earth Doped Nanocrystals

Abstract

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Topology-controlled Polarized Photoluminescence from Rare-earth Doped Nanocrystals

Abstract

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