Results 21 to 30 of about 40,854 (217)

Continuous Condensed Triplet Accumulation for Irradiance‐Induced Anticounterfeit Afterglow

Advanced Science, 2023
Afterglow room‐temperature emission that is independent of autofluorescence after ceasing excitation is a promising technology for state‐of‐the‐art bioimaging and security devices.
Ende Hopsah Badriyah, Kikuya Hayashi, Bahadur Sk, Rina Takano, Takayuki Ishida, Shuzo Hirata   +5 more
doaj   +1 more source

The prompt optical/near-infrared flare of GRB 050904: the most luminous transient ever detected [PDF]

, 2006
With a redshift of z=6.295, GRB 050904 is the most distant gamma-ray burst ever discovered. It was an energetic event at all wavelengths and the afterglow was observed in detail in the near-infrared bands.
Bolzonella M., D. A. Kann, N. Masetti, S. Klose, Totani T.   +4 more
core   +2 more sources

Detailed optical and near-infrared polarimetry, spectroscopy and broadband photometry of the afterglow of GRB 091018: Polarisation evolution [PDF]

, 2012
[Abridged] A number of phenomena have been observed in GRB afterglows that defy explanation by simple versions of the standard fireball model, leading to a variety of new models.
A. de Ugarte Postigo, A. Gomboc, A. J. Levan, A. J. van der Horst, A. Melandri, A. Rossi, A. Rowlinson, Alard, Barth, Berger, Bersier, Bersier, Björnsson, Bloom, Bloom, Burenin, C. G. Mundell, C. Guidorzi, C. Kouveliotou, Cardelli, Chandrasekhar, Costa, Covino, Curran, Curran, Cushing, E. Palazzi, E. Rol, Evans, Fossati, Fox, Frail, Gehrels, Gehrels, Ghisellini, Goldoni, Gorosabel, Granot, Granot, Greiner, Greiner, Greiner, Gruzinov, Gruzinov, Holland, I. A. Steele, J. Gorosabel, J. Greiner, J. Hjorth, J. P. U. Fynbo, Joos, K. Wiersema, Kennicutt, Klose, Kocevski, Kouveliotou, Krühler, Krühler, L. Kaper, Lazzati, Lazzati, Lazzati, Lipkin, Martin, Martin, Masetti, Matheson, Matsumiya, Mirabal, Mundell, Mészáros, Mészáros, N. R. Tanvir, Nousek, P. A. Curran, P. A. Evans, P. Goldoni, P. T. O'Brien, Pandey, Patat, Piran, R. A. M. J. Wijers, R. Filgas, R. L. C. Starling, Racusin, Rhoads, Rhoads, Rol, Roming, Rossi, S. Covino, S. D. Vergani, S. Klose, S. Kobayashi, Sagiv, Sari, Sari, Sato, Savaglio, Schady, Serkowski, Serkowski, Simmons, Sparks, Steele, T. Krühler, Toma, Uemura, Ukwatta, V. D'Elia, Van der Horst, van Paradijs, Vlasis, Vreeswijk, Wardle, Wiersema, Wijers, Willingale, Witzel, Wu   +119 more
core   +5 more sources

Organic persistent room temperature phosphorescence enabled by carbazole impurity

Frontiers in Chemistry, 2023
The molecular design of metal-free organic phosphors is essential for realizing persistent room-temperature phosphorescence (pRTP) despite its spin-forbidden nature.
Alexander C. Brannan, Nguyen Le Phuoc, Mikko Linnolahti, Alexander S. Romanov   +3 more
doaj   +1 more source

Observational constraints on the afterglow of GRB 020531 [PDF]

, 2002
We present the data acquired by the TAROT automated observatory on the afterglow of GRB 020531. Up to now, no convincing afterglow emission has been reported for this short/hard GRB at any wavelength, including X-ray and optical.
A. Klotz, Akerlof, Berger, Boër, Boër, Bringer, Bringer, Castro-Tirado, Castro-Tirado, Dezalay, Gorosabel, Hurley, J. L. Atteia, Kouveliotou, Kumar, Kumar, M. Boër, Mészáros, Panaitescu, Park, Piran, Rees, Shanthi, van Paradijs, Vrba   +24 more
core   +2 more sources

Single-Mode-Tuned Tricolor Emissions of Upconversion/Afterglow Hybrids for Anticounterfeiting Applications

Nanomaterials, 2022
This work presents a highly secure anticounterfeiting strategy based on upconversion/afterglow hybrids with tricolor emissions tuned by a single 975 nm laser.
Yanqing Hu, Songqi Li, Shijie Yu, Shuoran Chen, Yuyang Yan, Yan Liu, Yuanpeng Chen, Caosong Chen, Qiyue Shao, Yingshuai Liu   +9 more
doaj   +1 more source

Photochemical afterglow of single organic molecules with wide‐range tunable lifetime

PhotoMat, EarlyView., 2023
“All‐in‐one” strategy was used to achieve photochemical afterglow in single organic molecule, with second‐to‐hour range tunable lifetime by tailoring the electron‐withdrawing ability of substituents. Abstract Background Photochemical afterglow that relies on slow release of photons from the chemical energy stored by light pre‐irradiation has emerged as
Yuetian Pei, Yiwei Fan, Yawei Liu, Kuangshi Sun, Wei Feng, Qian Liu, Fuyou Li   +6 more
wiley   +1 more source

GRB 221009A: Revealing a Hidden Afterglow during the Prompt Emission Phase with Fermi-GBM Observations

The Astrophysical Journal Letters, 2023
Recently, LHAASO reported the detection of the brightest-of-all-time GRB 221009A, revealing the early onset of a TeV afterglow. We analyze the spectral evolution of the X-ray/gamma-ray emission of GRB 221009A measured by the Fermi Gamma-ray Burst Monitor
Hai-Ming Zhang, Yi-Yun Huang, Ruo-Yu Liu, Xiang-Yu Wang   +3 more
doaj   +1 more source

GRB 090510: a short burst from a massive star ? [PDF]

, 2011
GRB afterglow 090510 is (so far) the best-monitored afterglow in the optical, X-ray, and above 100 MeV, measurements covering 2-3 decades in time at each frequency.
A. Panaitescu, Asano, Beloborodov, Cenko, Corsi, De Pasquale, De Pasquale, Fenimore, Frail, Frail, Genet, Ghirlanda, Ghisellini, Guiriec, Harrison, Kann, Kuin, Kumar, Kumar, Lyutikov, McBreen, Medvedev, Mészáros, Mészáros, Norris, Nugis, Oates, O’Brien, Paczyński, Panaitescu, Panaitescu, Panaitescu, Panaitescu, Panaitescu, Rau, Razzaque, Rees, Roming, Sari, Sari, Uhm, Virgili, Willingale, Zhang   +43 more
core   +1 more source

Dendronized Encapsulation with Hierarchical Rigidification Enabling Robust Solution Room-Temperature Phosphorescence, Efficient Electroluminescence and Ultralong Afterglow. [PDF]

Adv Sci (Weinh)
The organic RTP's rigidity‐flexibility conflict via multiscale confinement is resolved. Dendronized donor‐acceptor with alkyl carbazoles enables intramolecular encapsulation and stability of triplet excitons, achieving 9 ms solution RTP. Combined with aggregation/PMMA doping, this suppresses nonradiative decay, achieving 72% film PLQY/17.2% OLED EQE ...
Li C, Lou Z, Hu L, Xie G, Zhang S, Xu B, Zhao Z, Lam JWY, Tang BZ.   +8 more
europepmc   +2 more sources