Results 31 to 40 of about 909,763 (253)

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

Advanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan, Thomas D. Small, Gregory F. Metha, Mahmoud Adel Hamza, Thomas J. O'Dea, Yideng Shen, Cameron J. Shearer   +6 more
wiley   +1 more source

Thermal Infrared Ground Based Instruments: Lessons Learned (PPT)

, 2020
With the imminent launch of the JWST, the field of thermal-infrared (TIR) astronomy will enjoy a revolution. It is easy to imagine that all areas of infrared (IR) astronomy will be greatly advanced, but perhaps impossible to conceive of the new vistas ...
Packham, Chris (author), Brandl, B.R. (author)   +1 more
core   +1 more source

Open skies: the National Radio Astronomy Observatory and its impact on US radio astronomy [PDF]

, 2020
This open access book on the history of the National Radio Astronomy Observatory covers the scientific discoveries and technical innovations of late 20th century radio astronomy with particular attention to the people and institutions involved.
Kellermann, Kenneth I., Bouton, Ellen N., Bouton, Ellen N, Kellermann, Kenneth I, Brandt, Sierra S, Brandt, Sierra S.   +5 more
core   +1 more source

Design of the Optical System for a Protomodel of Space Infrared Cryogenic System [PDF]

Journal of Astronomy and Space Sciences, 2005
Many technical challenges are being tried for a large space infrared telescope, which is one of the major objectives of the Strategic Technology Road Map (STRM) of KASI (Korea Astronomy and Space Science Institute).
Dae-Hee Lee, Soojong Park, In-Soo Yuk, Uk-Won Nam, Ho Jin, Sungho Lee, Jeong-Yeol Han, Hyung Suk Yang, Dong Lak Kim, Geon-Hee Kim, Seong-Je Park, Byung-Hyuk Kim, Han Jeong   +12 more
doaj   +1 more source

Dielectric Permittivity Tensor of Muscovite for Next Generation All Van Der Waals Broadband Photonic Components

Advanced Optical Materials, EarlyView.
Low‐index and low‐loss vdW muscovite represents an emerging robust dielectric platform for the creation of next‐generation all‐vdW nanophotonic architectures. Its utilization as a low‐index building‐block in all‐vdW multilayers enables extreme optical contrast when paired with MoS2, paving the way to the realization of few‐layer ultrathin DBS ...
Meri H. Hayrapetyan, Maksim L. Sargsyan, Davit A. Karakhanyan, Ani P. Khachatryan, Maria A. Levonyan, Dmitrii Litvinov, Maciej Koperski, Artsruni V. Margaryan, Makars Šiškins, Konstantin S. Novoselov, Davit A. Ghazaryan   +10 more
wiley   +1 more source

Pushing The Limits of Mid-Wave Infrared Detection with Superconducting Nanowire Single-Photon Detectors [PDF]

EPJ Web of Conferences
Extending single-photon detection capabilities into the mid- infrared is expected to have far-reaching implications for long-wavelength quantum optics, quantum and free-space communication, astronomy, environmental monitoring, and fundamental molecular ...
Oksenberg Eitan, Gourgues Ronan, Meder Steffen, Zöllner Jona, Los Johannes W. N., Finley Jonathan, Castaneda Mario   +6 more
doaj   +1 more source

Coherent Absorption Reveals Colors Hidden in a Grey Fabry–Pérot Cavity

Advanced Optical Materials, EarlyView.
A dielectric thin film shows colors depending on its thickness; this effect can be used to encode information normally accessible through single‐beam spectroscopy. We developed a method to conceal this kind of information, based on coating the dielectric with a matched conductor, that suppresses the color‐bearing thin‐film resonances.
Giuseppe E. Lio, Giulio Carotta, Lorenzo Lavista, Andrea Camposeo, Giacomo Venturi, Agnese Guernieri, Alessandro Pitanti, Simon A. R. Horsley, Giuseppe C. La Rocca, Alessandro Tredicucci, Simone Zanotto   +10 more
wiley   +1 more source

SOFIA: Stratospheric Observatory for Infrared Astronomy [PDF]

, 2007
This viewgraph presentation reviews the Stratospheric Observatory for Infrared Astronomy (SOFIA). The contents include: 1) Heritage & History; 2) Level 1 Requirements; 3) Top Level Overview of the Observatory; 4) Development Challenges; and 5) Highlight ...
Kunz, Nans, Bowers, Al, Becker, Eric
core  

Influence of stripline coupling on the magnetostatic mode line width of an yttrium-iron-garnet sphere

AIP Advances, 2018
We study the effect of stripline coupling on the damping of magnetostatic modes in an yttrium-iron-garnet sphere. Both the magnetostatic dispersion and line width display a pronounced dependence on the YIG-stripline separation, with the coupling ...
Y. Yang, M. Harder, J. W. Rao, B. M. Yao, W. Lu, Y. S. Gui, C.-M. Hu   +6 more
doaj   +1 more source

Multispectral UV Imaging on Capacitive CMOS Arrays Enabled by Solution‐Processed Metal‐Oxide Nanoparticles

Advanced Science, EarlyView.
Ultraviolet (UV) imagers are important for a variety of applications but often require dedicated semiconductor process flows. Here, a versatile capacitive CMOS platform is transformed into a visible‐blind, multispectral UV imager through post‐CMOS functionalization with solution‐processed metal‐oxide nanoparticles. The UV‐induced photodielectric effect
Suman Kundu, Tao Shen, Kai Betlem, Murali K. Ghatkesar, Peter G. Steeneken, Frans P. Widdershoven   +5 more
wiley   +1 more source