Results 21 to 30 of about 12,438,760 (311)

The Transit Light Source Effect: False Spectral Features and Incorrect Densities for M-dwarf Transiting Planets [PDF]

, 2017
Transmission spectra are differential measurements that utilize stellar illumination to probe transiting exoplanet atmospheres. Any spectral difference between the illuminating light source and the disk-integrated stellar spectrum due to starspots and ...
B. Rackham, D. Apai, M. Giampapa
semanticscholar   +1 more source

Scalable Squeezed Light Source for Continuous Variable Quantum Sampling [PDF]

Conference on Lasers and Electro-Optics, 2018
We propose a squeezed light source meeting the stringent requirements of continuous variable quantum sampling. With typical parameters, squeezed states with mean photon number of 10 or higher can be generated at repetition rates of over 100MHz.
Z. Vernon, N. Quesada, M. Liscidini, M. Liscidini, B. Morrison, M. Menotti, K. Tan, J. Sipe   +7 more
semanticscholar   +1 more source

Light Sources and Lighting Circuits

Journal of Light & Visual Environment, 2008
According to machinery statistics of the Ministry of Economy, Trade and Industry, the quantity of electric lamps produced in Japan was 613,000,000 (68.1% compared to the previous year). Of these, 73,000,000 were general lamps (88.1% compared to the previous year) and 32,000,000 were halogen lamps (79.3% compared to the previous year).
YASUDA, Takeo, SUWA, Takumi, NAOKI, Shouji, SAITO, Akiko, MAEHARA, Akiyoshi, OKADA, Atsunori, KOMATSU, Naoki, ASANO, Hiroyuki   +7 more
openaire   +5 more sources

ElasticFusion: Real-time dense SLAM and light source estimation

Int. J. Robotics Res., 2016
We present a novel approach to real-time dense visual simultaneous localisation and mapping. Our system is capable of capturing comprehensive dense globally consistent surfel-based maps of room scale environments and beyond explored using an RGB-D camera
Thomas Whelan, Renato F. Salas-Moreno, B. Glocker, A. Davison, Stefan Leutenegger   +4 more
semanticscholar   +1 more source

Subwavelength coherent imaging of periodic samples using a 13.5 nm tabletop high-harmonic light source [PDF]

Nature Photonics, 2017
Coherent diffractive imaging is unique, being the only route for achieving high spatial resolution in the extreme ultraviolet and X-ray regions, limited only by the wavelength of the light.
D. Gardner, M. Tanksalvala, E. Shanblatt, Xiaoshi Zhang, B. Galloway, Christina L. Porter, Robert Karl Jr, Charles S. Bevis, D. Adams, H. Kapteyn, M. Murnane, G. Mancini   +11 more
semanticscholar   +1 more source

A Novel Dual Air-Bearing Fixed-χ Diffractometer for Small-Molecule Single-Crystal X-ray Diffraction on Beamline I19 at Diamond Light Source

Crystals, 2017
Herein, we describe the development of a novel dual air-bearing fixed-χ diffractometer for beamline I19 at Diamond Light Source. The diffractometer is designed to facilitate the rapid data collections possible with a Dectris Pilatus 2M pixel-array photon-
David . R Allan, Harriott Nowell, Sarah A. Barnett, Mark R. Warren, Adrian Wilcox, Jeppe Christensen, Lucy K. Saunders, Andrew Peach, Mark T. Hooper, Ljubo Zaja, Suren Patel, Leo Cahill, Russell Marshall, Steven Trimnell, Andrew J. Foster, Trevor Bates, Simon Lay, Mark A. Williams, Paul V. Hathaway, Graeme Winter, Markus Gerstel, Ron W. Wooley   +21 more
doaj   +1 more source

Diffractive small angle X-ray scattering imaging for anisotropic structures

Nature Communications, 2019
Mesoscale investigations of material microarchitecture using small angle X-ray scattering (SAXS) methods have been limited by long measurement times. Here, the authors present an X-ray diffractive optics method which enables single shot acquisition of ...
Matias Kagias, Zhentian Wang, Mie Elholm Birkbak, Erik Lauridsen, Matteo Abis, Goran Lovric, Konstantins Jefimovs, Marco Stampanoni   +7 more
doaj   +1 more source

Golden ratio in venation patterns of dragonfly wings

Scientific Reports, 2023
The vein pattern in insect wings allows this lightweight structure to carry multiple biological functions. Here, an investigation of the angular distribution of the vein struts in dragonfly wings revealed that the golden angle or golden ratio dominates ...
Keene Lu, Samson Shen, Lisa M. Miller, Xiaojing Huang   +3 more
doaj   +1 more source

Robotic sample changers for macromolecular X-ray crystallography and biological small-angle X-ray scattering at the National Synchrotron Light Source II. Corrigendum

Journal of Synchrotron Radiation, 2022
A correction in the paper by Lazo et al. [(2021). J. Synchrotron Rad. 28, 1649–1661] is made.
Edwin O. Lazo, Stephen Antonelli, Jun Aishima, Herbert J. Bernstein, Dileep Bhogadi, Martin R. Fuchs, Nicolas Guichard, Sean McSweeney, Stuart Myers, Kun Qian, Dieter Schneider, Grace Shea-McCarthy, John Skinner, Robert Sweet, Lin Yang, Jean Jakoncic   +15 more
doaj   +1 more source

Portable all-fiber dual-output widely tunable light source for coherent Raman imaging

Biomedical Optics Express, 2019
We present a rapidly tunable dual-output all-fiber light source for coherent Raman imaging, based on a dispersively matched mode-locked laser pumping a parametric oscillator.
M. Brinkmann, Alexander Fast, T. Hellwig, I. Pence, C. Evans, C. Fallnich   +5 more
semanticscholar   +1 more source