Measurement of snowpack density, grain size, and black carbon concentration using time-domain diffuse optics by Connor Andrew Henley, Colin Richard Meyer, Jacob Ian Chalif, Joseph Lee Hollmann, Ramesh Raskar

“…Rather than measuring direct surface returns, our system captures photons that enter and exit the snow at different points, separated by a small distance (4–10 cm). …”
Get full text

Probing levitodynamics with multi-stochastic forces and the simple applications on the dark matter detection in optical levitation experiment by Xi Cheng, Ji-Heng Guo, Wenyu Wang, Bin Zhu

“…This paper investigates levitodynamics with multiple stochastic forces, including thermal drag, photon recoil, feedback, etc., assuming that all of these forces adhere to the fluctuation-dissipation theorem. …”
Get full text

Plasmonic metal nanostructures as performance enhancers in emerging solar cells: A review by Abdul Subhan, Abdel-Hamid. I. Mourad

“…This review compares the current trends in implanting these stable metallic nanostructures within the solar cell architecture to improve the photon harvesting capability. The categories of emerging solar cells focused herein include perovskite, dye-sensitized, and quantum dots, investigating the role of size and morphology of metal nanoparticles in boosting power conversion efficiency. …”
Get full text

Bulk Motions in the Black Hole Jet Sheath as a Candidate for the Comptonizing Corona by Navin Sridhar, Bart Ripperda, Lorenzo Sironi, Jordy Davelaar, Andrei M. Beloborodov

“…These properties suggest that the dissipative jet sheath may be a viable “coronal” region, capable of upscattering seed soft photons into a hard, nonthermal tail, as seen during the hard states of X-ray binaries and active galactic nuclei.…”
Get full text

Motion-tolerant 3D volumetric multimodality microscopy imaging of human skin with subcellular resolution and extended field-of-view by Zhenguo Wu, Yunxian Tian, Jianhua Zhao, Yimei Huang, Harvey Lui, Sunil Kalia, Haishan Zeng

“…A multimodality microscopy system using this method provides simultaneous reflectance confocal, two-photon excited fluorescence, and second harmonic generation imaging, enabling multi-contrast capabilities. …”
Get full text

C-N vs. C-C Bond Photodissociation in N-(tert-butyldiphenylmethyl)aniline by Stylianos Garas, Michael G. Siskos, Antonios K. Zarkadis

“…At higher laser pulse intensities the radical 1a• is reexcited by a second photon leading through electrocyclization to the 4a,4b-dihydro-9-tert-butylfluorenyl radical (DHBF•) and finally to fluorenyl products. …”
Get full text

Cylindrically bent Laue analyzer in an X-ray Raman/emission spectrometer: performance tests and a comparison with spherically bent Bragg analyzers by Nozomu Hiraoka

“…Widely used, Bragg analyzers display excellent performance at the photon energy E ≤ 10 keV. However, at higher E, the reflectivity and the resolution gradually deteriorate as E increases, showing poor performance above 20 keV. …”
Get full text

Characterization of Synthetic Ni(II)-Xylenol Complex as a Photosensitizer for Wide-Band Gap ZnO Semiconductor Electrodes by Suman Kushwaha, Lal Bahadur

“…The sandwich-type dye-sensitized solar cell using ZnO semiconducting thin film with test dye anchored onto it showed the cell output as follows: VOC=0.506 V, Jsc=1.68 mA cm−2, and FF=0.41 under illumination with full spectrum of light (intensity 520 mW cm−2), while on illumination with visible light (λ>420 nm, intensity 480 mW cm−2), VOC=0.506 V, Jsc=1.4 mA cm−2, and FF=0.49 were achieved. Maximum incident photon-to-current conversion efficiency for the present system was found to be 8.7% at wavelength (λmax=563 nm).…”
Get full text

A multidimensional approach to quantum state tomography of photoelectron wavepackets by H. Laurell, J. Baños-Gutiérrez, A. L’Huillier, D. Busto, D. Finkelstein-Shapiro

“…To this end, several methods to reconstruct the density matrix, quantum state tomography protocols, have been developed and tested on photoelectrons ejected from noble gases following absorption of extreme ultraviolet (XUV) photons from attosecond pulses. It remains a challenge to obtain model-free, single scan protocols that can reconstruct the density matrix with high fidelities. …”
Get full text

Real-time data processing for serial crystallography experiments by Thomas White, Tim Schoof, Sergey Yakubov, Aleksandra Tolstikova, Philipp Middendorf, Mikhail Karnevskiy, Valerio Mariani, Alessandra Henkel, Bjarne Klopprogge, Juergen Hannappel, Dominik Oberthuer, Ivan De Gennaro Aquino, Dmitry Egorov, Anna Munke, Janina Sprenger, Guillaume Pompidor, Helena Taberman, Andrey Gruzinov, Jan Meyer, Johanna Hakanpää, Martin Gasthuber

“…We discuss the implications of real-time data processing on the `data deluge' problem from recent and future photon-science experiments, in particular on calibration requirements, computing access patterns and the need for the preservation of raw data.…”
Get full text

A Simulated Galaxy Laboratory: Exploring the Observational Effects on UV Spectral Absorption Line Measurements by R. Michael Jennings, Alaina Henry, Valentin Mauerhofer, Timothy Heckman, Claudia Scarlata, Cody Carr, Xinfeng Xu, Mason Huberty, Simon Gazagnes, Anne E. Jaskot, Jeremy Blaizot, Anne Verhamme, Sophia R. Flury, Alberto Saldana-Lopez, Matthew J. Hayes, Maxime Trebitsch

“…Down-the-barrel observations, where the absorption is measured against the galaxy itself, are commonly used to study feedback from galactic outflows and to make predictions about the leakage of H i ionizing photons into the intergalactic medium. Nonetheless, the interpretation of these observations is challenging, and observational compromises are often made in terms of signal-to-noise ratio, spectral resolution, or the use of stacking analyses. …”
Get full text

Brain neurons internalise polymeric micron-sized capsules: Insights from in vitro and in vivo studies by Olga Kopach, Olga A. Sindeeva, Kaiyu Zheng, Eleanor McGowan, Gleb B. Sukhorukov, Dmitri A. Rusakov

“…In the intact brain, multiplexed two-photon excitation imaging in vivo confirmed the internalisation of microcapsules by cortical neurons following delivery to the somatosensory brain region. …”
Get full text

Theoretical understanding of water splitting by analyzing nanocatalyst photoabsorption spectra by Gollapalli Prince, Caspary Toroker Maytal

“…Photons can be used to either monitor or induce catalysis by acting as photoexcited holes or quasi particles, which aid in water splitting reaction leading to a major step towards sustainable energy. …”
Get full text

Effects of Level of Retrieval Success on Recall-Related Frontal and Medial Temporal Lobe Activations by Daniela Montaldi, Andrew R. Mayes, Anna Barnes, Donald M. Hadley, Jim Patterson, David J. Wyper

“…Brain dedicated single photon emission computed tomography (SPECT) was used to compare the neuroactivation produced by the cued recall of response words in a set of studied word pairs with that produced by the cued retrieval of words semantically related to unstudied stimulus words. …”
Get full text

Dosimetric Comparison of Tangential Volumetric Arc Therapy and Half Beam Volumetric Modulated Arc Therapy Planning Technique for Carcinoma of the Breast by Shreekripa Rao, Alpha Benny, Srinidhi Chandraguthi, Rechal Dsouza

“…Material and Methods: Twenty patients (10 with left and 10 with right breast cancer) were planned with Tangential Volumetric Modulated Arc Therapy (tVMAT) and Half Beam Volumetric Modulated Arc Therapy (HVMAT) techniques for prescribed dose of 42.56Gy over 16 fractions with 6MV photon. The tVMAT technique limit the radiation to non-target areas. …”
Get full text

In Vivo Resolution of Multiexponential Decays of Multiple Near-Infrared Molecular Probes by Fluorescence Lifetime-Gated Whole-Body Time-Resolved Diffuse Optical Imaging by Walter Akers, Frederic Lesage, Dewey Holten, Samuel Achilefu

“…Fluorescence intensity and lifetime maps were reconstructed after raster-scanning whole-body regions of interest by time-correlated single-photon counting. Each captured temporal point-spread function (TPSF) was deconvolved using both a single and a multiexponental decay model to best determine the measured fluorescence lifetimes. …”
Get full text

Hybrid TPMS-based architectured materials (HTAM) for enhanced specific stiffness using data-driven design by Jinwook Yeo, Samantha Cheung, X. Wendy Gu, Seunghwa Ryu

“…Following optimization and manufacturability considerations, optimized HTAM designs selected from Pareto front were fabricated using selective laser sintering (SLS) at the macro scale and two-photon polymerization (2PP) at the micro scale. Compression tests confirmed the superior stiffness and exceptional yield strength of the HTAM, validating their potential for advanced engineering applications.…”
Get full text

Enhanced solar hydrogen production via reconfigured semi-polar facet/cocatalyst heterointerfaces in GaN/Si photocathodes by Wei Chen, Danhao Wang, Weiyi Wang, Xin Liu, Yuying Liu, Chao Wang, Yang Kang, Shi Fang, Xudong Yang, Wengang Gu, Dongyang Luo, Yuanmin Luo, Zongtao Qu, Chengjie Zuo, Yi Kang, Lin Cheng, Wensheng Yan, Wei Hu, Ran Long, Jr-Hau He, Kang Liang, Sheng Liu, Yujie Xiong, Haiding Sun

“…Here, we report a unique photoelectrode composed of reconfigured gallium nitride nanowire-on-silicon wafer loaded with Au nanoparticles as cocatalyst that achieved an impressive applied bias photon-to-current efficiency of 10.36% under AM 1.5G one sun illumination while exhibiting stable PEC hydrogen evolution over 800 h at a high current density. …”
Get full text

Red-Shifted Aequorin-Based Bioluminescent Reporters for in Vivo Imaging of Ca Signaling by Thomas Curie, Kelly L. Rogers, Cesare Colasante, Philippe BrûClet

“…This substantially improves photon transmission through tissue, such as the skin and thoracic cage. …”
Get full text

First in Vivo SPECT Imaging of Mouse Femorotibial Cartilage Using Tc-NTP 15-5 by Elisabeth Miot-Noirault, Aurélien Vidal, Philippe Auzeloux, Jean-Claude Madelmont, Jean Maublant, Nicole Moins

“…This study aimed to report the first single-photon emission computed tomographic (SPECT) imaging of articular cartilage in mice using 99m Tc-NTP 15-5 radiotracer. …”
Get full text