Results 1 to 10 of about 33,690 (283)

The early afterglow [PDF]

open access: yesAstronomy and Astrophysics Supplement Series, 1999
We calculate the expected spectrum and light curves of the early afterglow. For short GRBs the peak of the afterglow will be delayed, typically, by a few dozens of seconds after the burst. The x-ray and gamma-ray characteristics of this delayed emission provide a way to discriminate between late internal shocks emission (part of the GRB) and the early ...
Sari, R., Piran, T.
openaire   +5 more sources

(INVITED) On the mechanism leading to afterglow in Gd2O2S:Pr [PDF]

open access: yesOptical Materials: X, 2021
The performance of scintillator materials and phosphors for x-ray imaging is adversely affected by afterglow, giving rise to ghost images and thus compromising image quality.
Cees Ronda, Andries Meijerink
doaj   +2 more sources

Short-range charge transfer for efficient ultra-narrowband deep blue afterglow

open access: yesNature Communications
Efficient and narrowband blue organic afterglow materials are critical components for advanced optoelectronic applications, but so far, have been rarely explored. Herein, we report short-range charge transfer-assisted high efficiency and ultra-narrowband
Xin Zou   +8 more
doaj   +2 more sources

Carbon Dots‐Inked Paper with Single/Two‐Photon Excited Dual‐Mode Thermochromic Afterglow for Advanced Dynamic Information Encryption

open access: yesAdvanced Materials
Achieving thermochromic afterglow (TCAG) in a single material for advanced information encryption remains a significant challenge. Herein, TCAG in carbon dots (CDs)‐inked paper (CDs@Paper) is achieved by tuning the temperature‐dependent dual‐mode ...
Yupeng Liu
exaly   +2 more sources

Enabling robust blue circularly polarized organic afterglow through self-confining isolated chiral chromophore

open access: yesNature Communications
Creating circularly polarized organic afterglow system with elevated triplet energy levels, suppressed non-radiative transitions, and effective chirality, which are three critical prerequisites for achieving blue circularly polarized afterglow, has posed
Mingjian Zeng   +16 more
doaj   +2 more sources

Organic Afterglow Vesicles

open access: yesAdvanced Science
Organic afterglow materials hold great promise for applications in bioimaging, sensing, and information encryption, yet the construction of advanced nanostructures like vesicles with long‐lived luminescence remains a formidable challenge.
Siqi Zhu   +8 more
doaj   +3 more sources

Temporal dusty plasma afterglow: A review

open access: yesFrontiers in Physics, 2022
In complex plasmas, dust particles are charged through their interactions with the electrons and ions of the surrounding plasma. In low-temperature laboratory plasmas, dust particles most commonly acquire a negative charge. In particular, in a laboratory
Lénaïc Couëdel, Lénaïc Couëdel
doaj   +1 more source

Green Afterglow of Undoped SrAl2O4

open access: yesNanomaterials, 2021
Undoped SrAl2O4 nanocrystals were obtained via solution combustion using urea as fuel. The afterglow properties of undoped SrAl2O4 were investigated. Green afterglow from undoped SrAl2O4 is visible to the human eye when the 325 nm irradiation of a helium–
Bao-Gai Zhai, Yuan-Ming Huang
doaj   +1 more source

Afterglow

open access: yesUnderCurrents: Journal of Critical Environmental Studies, 2022
You can see Afterglow in motion at https://tiny.cc/uc_afterglow or https://youtu.be/kjKQr38c7qA.This mixed media piece explores the relationship between memory and home videos. The chosen scene is an everyday glimpse of childhood recreation: my cousins and I swivel in the sand at the water’s edge.
  +5 more sources

Luminescent properties of Mg1.99SnO4:0.01Mn2+ phosphors doped with Zn2+

open access: yesJournal of Materiomics, 2023
In this work, a series of ZnxMg1.99-xSnO4:0.01Mn2+ (x = 0, 0.01, 0.02, 0.03, 0.04) green long afterglow phosphors are prepared by high-temperature solid-phase reaction. The photoluminescence and long afterglow performance of host material doped with Zn2+
Ge Gao   +4 more
doaj   +1 more source

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