Articles with "spectral diffusion" as a keyword



Vibrational spectral diffusion in supercritical deuterated ammonia from first principles simulations: Roles of hydrogen bonds, free ND modes and inertial rotation of ammonia molecules

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Published in 2018 at "Journal of Molecular Liquids"

DOI: 10.1016/j.molliq.2018.08.089

Abstract: Abstract We have presented a first principles study of the vibrational spectral diffusion and related dynamical and structural properties of supercritical ammonia at two different densities by means of ab initio molecular dynamics and time… read more here.

Keywords: bonds free; ammonia molecules; hydrogen bonds; spectral diffusion ... See more keywords

Suppressed Magnitude of Spectral Diffusion in Cube-Shaped CdSe/CdS Core/Shell Nanocrystals with Exceedingly Stable Photoluminescence.

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Published in 2024 at "Nano letters"

DOI: 10.1021/acs.nanolett.3c04250

Abstract: Colloidal semiconductor nanocrystals are promising candidates for quantum light sources, yet their application has been impeded by photoluminescence instability due to blinking and spectral diffusion. This study introduces a new category of cube-shaped CdSe/CdS core/shell… read more here.

Keywords: core; core shell; photoluminescence; spectral diffusion ... See more keywords

Measuring the Ultrafast Spectral Diffusion and Vibronic Coupling Dynamics in CdSe Colloidal Quantum Wells using Two-Dimensional Electronic Spectroscopy.

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Published in 2023 at "ACS nano"

DOI: 10.1021/acsnano.2c09606

Abstract: We measure the ultrafast spectral diffusion, vibronic dynamics, and energy relaxation of a CdSe colloidal quantum wells (CQWs) system at room temperature using two-dimensional electronic spectroscopy (2DES). The energy relaxation of light-hole (LH) excitons and… read more here.

Keywords: spectroscopy; cdse colloidal; spectral diffusion; ultrafast spectral ... See more keywords

Enhancing Dynamic Spectral Diffusion in Metal-Organic Frameworks through Defect Engineering.

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Published in 2023 at "Journal of the American Chemical Society"

DOI: 10.1021/jacs.2c10672

Abstract: The crystal packing of organic chromophores has a profound impact on their photophysical properties. Molecular crystal engineering is generally incapable of producing precisely spaced arrays of molecules for use in photovoltaics, light-emitting diodes, and sensors.… read more here.

Keywords: diffusion; organic frameworks; spectral diffusion; metal organic ... See more keywords

Time-Resolved Spectral Diffusion of a Multimode Mechanical Memory.

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Published in 2025 at "Physical review letters"

DOI: 10.1103/tcpy-jhjy

Abstract: High-frequency phonons hold great promise as carriers of quantum information on chip and as quantum memories. Because of their coherent interaction with several systems, their compact mode volume, and slow group velocity, multiple experiments have… read more here.

Keywords: time resolved; memory; time; resolved spectral ... See more keywords

DWSDiff: Dual-Window Spectral Diffusion for Hyperspectral Anomaly Detection

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Published in 2025 at "IEEE Transactions on Geoscience and Remote Sensing"

DOI: 10.1109/tgrs.2025.3537331

Abstract: Anomaly detection (AD) has emerged as a critical area of research in hyperspectral imagery (HIS) processing, focusing on detecting sparse, small targets with spectral and spatial features deviating from the background without prior information. The… read more here.

Keywords: detection; dual window; spectral diffusion; background ... See more keywords

Optical control of spectral diffusion with single InAs quantum dots in a silver-embedded nanocone.

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Published in 2017 at "Optics express"

DOI: 10.1364/oe.25.008073

Abstract: We study the spectral diffusion in a single epitaxial InAs quantum dot placed in a silver-embedded nanocone structure. Making use of a series of stroboscopic detection of optical transitions, we demonstrate the temporal fluctuations in… read more here.

Keywords: spectral diffusion; silver embedded; diffusion single; inas quantum ... See more keywords