Results 51 to 60 of about 70,469 (251)

Exploring the multiparameter nature of EUV-visible wave mixing at the FERMI FEL

Structural Dynamics, 2019
The rapid development of extreme ultraviolet (EUV) and x-ray ultrafast coherent light sources such as free electron lasers (FELs) has triggered the extension of wave-mixing techniques to short wavelengths.
L. Foglia, F. Capotondi, H. Höppner, A. Gessini, L. Giannessi, G. Kurdi, I. Lopez Quintas, C. Masciovecchio, M. Kiskinova, R. Mincigrucci, D. Naumenko, I. P. Nikolov, E. Pedersoli, G. M. Rossi, A. Simoncig, F. Bencivenga   +15 more
doaj   +1 more source

The X-/Gamma-ray camera ECLAIRs for the Gammay-ray burst mission SVOM

, 2014
We present ECLAIRs, the Gamma-ray burst (GRB) trigger camera to fly on-board the Chinese-French mission SVOM. ECLAIRs is a wide-field ($\sim 2$\,sr) coded mask camera with a mask transparency of 40\% and a 1024 $\mathrm{cm}^2$ detection plane coupled to ...
Amoros, C., Atteia, J. -L., Barret, D., Bordon, S., Cordier, B., Gevin, O., Godet, O., Gonzalez, F., Gros, A., Götz, D., Houret, B., Lachaud, C., Lacombe, K., Mandrou, P., Marty, W., Mercier, K., Nasser, G., Pons, R., Rambaud, D., Ramon, P., Rouaix, G., Schanne, S., Triou, H., Waegebaert, V   +23 more
core   +1 more source

Cu‐Based MOF/TiO2 Composite Nanomaterials for Photocatalytic Hydrogen Generation and the Role of Copper

Advanced Functional Materials, EarlyView.
HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan, Marie Le Pivert, Alireza Ranjbari, Diana Dragoe, Daniel Bahena‐Uribe, Christophe Colbeau‐Justin, Christian Herrero, Dorota Rutkowska‐Zbik, Johnny Deschamps, Hynd Remita   +9 more
wiley   +1 more source

Probing the Subparsec Dust of a Supermassive Black Hole with the Tidal Disruption Event AT 2020mot

The Astrophysical Journal
AT 2020mot is a typical UV/optical tidal disruption event (TDE) with no radio or X-ray signatures in a quiescent host. We find an i -band excess and rebrightening along the decline of the light curve which could be due to two consecutive dust echoes from
Megan Newsome, Iair Arcavi, D. Andrew Howell, Jamison Burke, Kishalay De, Yael Dgany, Sara Faris, Joseph Farah, Daichi Hiramatsu, Curtis McCully, Estefania Padilla-Gonzalez, Craig Pellegrino, Giacomo Terreran   +12 more
doaj   +1 more source

Photoionizaton of Pure and Doped Helium Nanodroplets

, 2014
Helium nanodroplets, commonly regarded as the "nearly ideal spectroscopic matrix", are being actively studied for more than two decades now. While they mostly serve as cold, weakly perturbing and transparent medium for high-resolution spectroscopy of ...
Mudrich, M., Stienkemeier, F.
core   +1 more source

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

Advanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida, Yanjie Wang, Thais A. Rodrigues, Paulo H. H. Nunes, Vagner R. de Mendonça, Paulo H. E. Falsetti, Leticia V. Savazi, Tao He, Alexandra V. Bardakova, Aida V. Rudakova, Jie Tian, Alexei V. Emeline, Osmando F. Lopes, Antonio Otavio T. Patrocínio, Jia Hong Pan, Caue Ribeiro, Detlef W. Bahnemann   +16 more
wiley   +1 more source

Ultraviolet Radiation and Neutrinos: Two Messengers from CCSNe in the CSM Scenario

The Astrophysical Journal
Massive stars (>8 M _⊙ ) often undergo intense mass loss through winds or eruptive events in the final stages of their evolution, leading to the formation of a dense circumstellar medium (CSM). This material, expelled months to years before core collapse,
Silvia Gagliardini, Simone Dall’Osso, Dafne Guetta, Angela Zegarelli, Silvia Celli, Antonio Capone, Irene Di Palma   +6 more
doaj   +1 more source

Novel laser gain and time-resolved FTIR studies of photochemistry [PDF]

, 1990
Several techniques are discussed which can be used to explore laboratory photochemical processes and kinetics relevant to planetary atmospheres; these include time-resolved laser gain-versus-absorption spectroscopy and time-resolved Fourier transform ...
Leone, Stephen R.
core   +1 more source

Copper Doping Enhances the Activity and Selectivity of Atomically Precise Ag44 Nanoclusters for Photocatalytic CO2 Reduction

Advanced Functional Materials, EarlyView.
By a simple anti‐Galvanic reaction, up to six copper atoms could be preferably doped into the Ag2(SR)5 staple motifs and Ag20 dodecahedral shell of an atomically precise Ag44(SR)30 nanocluster. When anatase TiO2 is used as substrate, the (AgCu)44/TiO2 photocatalyst exhibited much improved activity in photocatalytic CO2 reduction compared to Ag44/TiO2 ...
Ye Liu, Xi Zheng, Xiufan Liu, Tengyuan Gao, Nicola Pinna, Yu Wang   +5 more
wiley   +1 more source

Inferring Kilonova Ejecta Photospheric Properties from Early Blackbody Spectra

The Astrophysical Journal
We present simple analytic corrections to the standard blackbody fitting used for early kilonova emission. We consider a spherical, relativistically expanding shell that radiates thermally at a single temperature in its own rest frame.
Gilad Sadeh
doaj   +1 more source