Results 71 to 80 of about 441,675 (343)

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

Advanced Functional Materials, EarlyView.
Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong, William D. J. Tremlett, Lucy Hart, Beier Hu, Zhuoran Qiao, Patipan Sukpoonprom, Sarah Fearn, Edoardo Angela, Matilde Brunetta, Demosthenes C. Koutsogeorgis, Nikolaos Kalfagiannis, Davide Nodari, Martyn A. McLachlan, Piers R. F. Barnes, Artem A. Bakulin, Nicholas J. Long, Nicola Gasparini   +16 more
wiley   +1 more source

Advancing Tests of Relativistic Gravity via Laser Ranging to Phobos [PDF]

, 2010
Phobos Laser Ranging (PLR) is a concept for a space mission designed to advance tests of relativistic gravity in the solar system. PLR's primary objective is to measure the curvature of space around the Sun, represented by the Eddington parameter $\gamma$
A Einstein, A Fienga, A Fienga, A Milani, André R. Girerd, AS Konopliv, B Bertotti, BA Ivanov, BG Bills, C.M. Will, CF Yoder, CF Yoder, CF Yoder, CM Will, CM Will, D Vokrouhlicky, DE Smith, DE Smith, DE Smith, DN Spergel, EG Adelberger, EG Adelberger, EM Standish, G Dvali, G Dvali, G Neukum, Hamid Hemmati, J Baer, J Müller, J Müller, James G. Williams, JBR Battat, JD Anderson, JD Bekenstein, JG Williams, JG Williams, JG Williams, JJ Degnan, JJ Degnan, JJ Degnan, John J. Degnan, JW Moffat, K Nordtvedt, K Nordtvedt, K Nordtvedt, M Chapront-Touzé, M Chapront-Touzé, M Efroimsky, MC Malin, MR Pearlman, N Arkani-Hamed, N Ashby, N Borderies, RA Jacobson, RD Reasenberg, RK Ulrich, RO Kuzmin, S Baeßler, S Godier, S Mouret, SG Turyshev, SG Turyshev, SG Turyshev, SG Turyshev, Slava G. Turyshev, SS Shapiro, T Damour, T Damour, T Damour, T Damour, T Damour, T Damour, T Damour, T Damour, TC Duxbury, TD Moyer, TD Moyer, TD Moyer, Thomas W. Murphy, TL Duvall, TL Duvall, TM Brown, TP Sotiriou, TW Murphy Jr, V Dikarev, V Lainey, VA Rubakov, VB Mendes, VB Mendes, William Farr, William M. Folkner, WK Hartmann, WM Folkner, WM Folkner, X Sun   +94 more
core   +2 more sources

Multi-GNSS orbit determination using satellite laser ranging

Journal of Geodesy, 2018
Galileo, BeiDou, QZSS, and NavIC are emerging global navigation satellite systems (GNSSs) and regional navigation satellite systems all of which are equipped with laser retroreflector arrays for range measurements.
G. Bury, K. Sośnica, R. Zajdel
semanticscholar   +1 more source

Superconducting nanowire single photon detector at 532 nm and demonstration in satellite laser ranging. [PDF]

Optics Express, 2016
Superconducting nanowire single-photon detectors (SNSPDs) at a wavelength of 532 nm were designed and fabricated aiming to satellite laser ranging (SLR) applications.
Hao Li, Sijing Chen, L. You, Wen Meng, Zhibo Wu, Zhongping Zhang, K. Tang, Lu Zhang, Weijun Zhang, Xiaoyan Yang, Xiaoyu Liu, Zhen Wang, Xiaoming Xie   +12 more
semanticscholar   +1 more source

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

Advanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger, Anna Mauri, Yang Cui, Sebastian Josef Weishäupl, Ali Deniz Özdemir, Hamad Syed, Aleksandr Ovsianikov, Wolfgang Wenzel, Alexander Pöthig, Jürgen Hauer, Mariana Kozlowska, Roland Augustinus Fischer   +11 more
wiley   +1 more source

Lasers for coherent optical satellite links with large dynamics

, 2013
We present the experimental realization of a laser system for ground to satellite optical Doppler ranging at the atmospheric turbulence limit. Such a system needs to display good frequency stability (a few parts in 10^{-14}) whilst allowing large and ...
Acef, Ouali, Chiodo, Nicola, Clairon, Andre, Djerroud, Khelifa, Wolf, Peter   +4 more
core   +2 more sources

Field tests of astrometric subsystem

Geodesy and Cartography, 2016
The paper presents results of astrometric subsystem’s functionality tests for space object laser ranging and astrometric position determination device, which is under construction in the Institute of Geodesy and Geoinformatics (GGI) of the University of ...
Ansis Zariņš, Diāna Haritonova, Augusts Rubans, Gunārs Silabriedis, Jānis Zvirgzds   +4 more
doaj   +1 more source

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

Advanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana, Indra Apsite, Leonid Ionov   +2 more
wiley   +1 more source

A correction method of encoder bias in satellite laser ranging system

Geodesy and Geodynamics, 2013
In a satellite laser ranging telescope system, well-aligned encoders of the elevation and azimuth axes are essential for tracking objects. However, it is very difficult and time-consuming to correct the bias between the absolute-position indices of the ...
Wang Peiyuan, Zhu Wei, Zou Tong, Guo Tangyong   +3 more
doaj   +1 more source

Ranging performance of satellite laser altimeters [PDF]

IEEE Transactions on Geoscience and Remote Sensing, 1992
Topographic mapping of the Earth, Moon, and planets can be accomplished with high resolution and accuracy using satellite laser altimeters. These systems employ nanosecond laser pulses and microradian beam divergences to achieve submetre vertical range resolution from orbital altitudes of several hundred kilometres.
openaire   +1 more source