Results 231 to 240 of about 22,226 (293)

Label free super resolution imaging with photonic nanojets from tunable tapered optical fibers. [PDF]

Nanophotonics
Shor Peled MH, Maconi G, Kassamakov I, Karabchevsky A.   +3 more
europepmc   +1 more source

Assessing the intensity of Late Quaternary humid phases in the Nefud Desert, northern Arabia

Journal of Quaternary Science, EarlyView.
ABSTRACT The climate history of the major dryland zones of the world, such as the Saharo–Arabian Desert belt, plays a key role in the dispersal of early humans through these intermittently inhospitable regions. Here, we assess the relative intensity of Late Quaternary humid phases in northern Arabia through lithological, geochemical, palaeoecological ...
Richard Clark‐Wilson, Simon J. Armitage, Ian Candy, Paul S. Breeze, Nick A. Drake, Huw S. Groucutt, Abdullah M. Alsharekh, Faisal Al‐Jibreen, Michael D. Petraglia, David B. Ryves   +9 more
wiley   +1 more source

Characterization of Holographic Gratings in PVA/AA Using Coherent Nanosecond Laser Exposure. [PDF]

Polymers (Basel)
Mena EJ, Bernabeu AP, Nájar G, Gallego S, Márquez A, Beléndez A.   +5 more
europepmc   +1 more source

High-speed measurement method for diffraction efficiency of gratings in broad range wavelength based on AOTF

Xieluyao Xu, Wenhao Li, Jirigalantu Jirigalantu, Hongzhu Yu, Jia-Wei Zhang, Hongzhi Liang   +5 more
openalex   +1 more source

Unveiling the Crystal Structure of Sanidine: A Polarized Raman and Ab Initio Simulation Exploration

Journal of Raman Spectroscopy, EarlyView.
This study combines polarized Raman spectroscopy and ab initio calculations to assign theoretical vibrational modes to observed spectra. Polarized Raman spectra were collected in six geometries (40–1200 cm−1). Theoretical predictions via DFT show good agreement with experiments, though some discrepancies point to influences like trace elements and ...
Michele Cassetta, Luca Bellucci, Sabrina Nazzareni, Francesco Vetere, Marco Giarola, Gino Mariotto   +5 more
wiley   +1 more source

Fabrication and characterization of a full-size ultra-precise lamellar grating for the Cosmic beamline at ALS-U. [PDF]

J Synchrotron Radiat
Voronov D, Park S, Huang L, Islegen-Wojdyla A, Gullikson E, Padmore H, Wang T, Idir M.   +7 more
europepmc   +1 more source

Measurement of Lateral Resolution in Confocal Raman Spectroscopy Using Indium Arsenide Nanowires

Journal of Raman Spectroscopy, EarlyView.
Lateral resolution is a key performance parameter for confocal Raman spectroscopy. We propose a protocol using an indium arsenide nanowire reference sample to quantitatively measure the resolution. The suitability of the method has been demonstrated through an international comparison with 15 participants. ABSTRACT Lateral resolution is a key figure of
Sebastian Wood, Keith R. Paton, Ruth Rawcliffe, Tomas Peach, Tehseen Adel, Alessio Sacco, Hugo Kerdoncuff, Matthieu Paillet, Ahmed‐Azmi Zahab, Paul Finnie, Li‐Lin Tay, Jeongyong Kim, Hyuksang Kwon, Nobuyasu Itoh, Shinsuke Kashiwagi, Andrea Mario Rossi, Yaxuan Yao, Lingling Ren, Elif Ozçeri, Gemma Rius, David Steinmetz, Andrea Richter, Thomas Dieing, Agnès Tempez, Ophelie Lancry, Marc Chaigneau, Angela R. Hight Walker, Erlon H. M. Ferreira, Maxim Shkunov, Fernando A. Castro   +29 more
wiley   +1 more source

Rapid Nanocellulose Wet Nanoimprint Lithography for Tunable Structural Color. [PDF]

ACS Nano
Mao H, Ahmad Z, Xin L, Lama H, Fan P, Shields P, Eyley S, Thielemans W, Cabral JT.   +8 more
europepmc   +1 more source

Nano‐Raman Spectroscopy of Tellurium Nanowires

Journal of Raman Spectroscopy, EarlyView.
Nano‐Raman evidences a diameter dependence of the peak position, among different tellurium nanowires and along the single species. ABSTRACT Tellurium‐based nanowires are interesting structures for applications in low‐dimensional electronics. This work investigates the vibrational dynamics of trigonal tellurium (t‐Te) nanowires through tip‐enhanced ...
Diego Sier, Rafael Nadas, André G. Pereira, Gabriel Tomaz Massardi, Erika Peixoto Pimenta, Sukarno Olavo Ferreira, Eduardo Nery Duarte Araujo, Ado Jorio   +7 more
wiley   +1 more source

Au-Si Diffusion Effects on Surface Plasmon Resonance Sensor Using Internal Photoemission at Metal/Si Schottky Barrier. [PDF]

ACS Omega
Ukaji M, Abubakr E, Imai Y, Kan T.
europepmc   +1 more source