Results 71 to 80 of about 241,679 (299)

The Gattini cameras for optical sky brightness measurements at Dome C, Antarctica [PDF]

, 2007
The Gattini cameras are two site testing instruments for the measurement of optical sky brightness, large area cloud cover and auroral detection of the night sky above the high altitude Dome C site in Antarctica.
Aristidi, E., Ashley, M., Briguglio, R., Busso, M., Candidi, M., Everett, J., Kenyon, S., Lawrence, J., Le Roux, B., Luong-Van, D., Moore, A., Phillips, A., Ragazzoni, R., Salinari, P., Storey, J., Taylor, M., Tosti, G., Travouillon, T.   +17 more
core   +2 more sources

All‐Optical Reconfigurable Physical Unclonable Function for Sustainable Security

Advanced Materials, EarlyView.
An all‐optical reconfigurable physical unclonable function (PUF) is demonstrated using plasmonic coupling–induced sintering of optically trapped gold nanoparticles, where Brownian motion serves as a robust entropy source. The resulting optical PUF exhibits high encoding density, strong resistance to modeling attacks, and practical authentication ...
Jang‐Kyun Kwak, Changgyun Moon, Hyun‐Bin Yu, Sunkook Kim, Dong‐Hwan Kim   +4 more
wiley   +1 more source

Free-space laser optical link simulation software [PDF]

, 2008
GDAF (Displays and Photonics Applications Group) in Electronics Technology Department at University Carlos III de Madrid develops a hardware-software application for a communications free-space optical link, in a Project with INSA corp.
Vergaz Benito, Ricardo
core   +1 more source

VADER - A Satellite Mission Concept For High Precision Dark Energy Studies [PDF]

, 2006
We present a satellite mission concept to measure the dark energy equation of state parameter w with percent-level precision. The Very Ambitious Dark Energy Research satellite (VADER) is a multi-wavelength survey mission joining X-ray, optical, and IR ...
Diethart, Cornelia, Fassbender, Rene, Fertl, Peter, Hasinger, Guenther, Hayes, Matthew, Koestner, Stefan, Kruselburger, Andreas, Schuecker, Peter, Stegmaier, Jutta, Valiante, Elisabetta, Weijmans, Anne-Marie   +10 more
core   +2 more sources

Freeform Fabrication of Layered Halide Perovskite Nanowire Heterojunctions

Advanced Materials, EarlyView.
‘All‐at‐once’ freeform fabrication of layered perovskite nanowire heterojunctions is realized by 3D printing employing meniscus‐guided crystallization. The integration of nanoscale additive manufacturing with layered halide perovskites will provide a versatile platform to freely design and realize highly stable perovskite‐based optoelectronic ...
Sixi Cao, Yu Liu, Zhuofei Gan, Shiqi Hu, Jihyuk Yang, Zhuoran Wang, Mingjian Yuan, Wen‐Di Li, Ji Tae Kim   +8 more
wiley   +1 more source

Enabling Technologies and New Challenges in IEEE 802.15.7 Optical Camera Communications Standard

IEEE Communications Magazine
In this article, we present a tutorial on recent optical camera communication (OCC) technologies that deploy light-emitting diodes (LEDs) and image sensors. The article contains a discussion on the amendment of the IEEE 802.15.7-2018 standard, termed the
Huy Nguyen, Ida Bagus Krishna Yoga Utama, Yeong Min Jang   +2 more
semanticscholar   +1 more source

Thermally Modulated Metasurface Sensor for Dynamic and Time‐Resolved Isolation of Extracellular Vesicles

Advanced Materials, EarlyView.
A thermally adaptive plasmonic metasurface, functionalized with poly(N‐isopropylacrylamide) (PNIPAM) and anti‐CD63 antibodies, enables precise, on‐demand capture and release of extracellular vesicles (EVs). Delivering high recovery, improved purity, and intact vesicle structure, the platform offers a versatile, label‐free solution for real‐time EV ...
Beyza Nur Kucuk, Eylul Gulsen Yilmaz, Yusuf Aslan, Emre Ece, Özgecan Erdem, Murat Alp Gungen, Bengi Özgün Öztürk, Fatih Inci   +7 more
wiley   +1 more source

Design and Implementation of the MIMO–COOK Scheme Using an Image Sensor for Long-Range Communication

Sensors, 2020
Radio-frequency technologies are widely applied in many fields such as mobile systems, healthcare systems, television and radio broadcasting, and satellite communications. However, one major problem in wireless communication based on radio frequencies is
Van Hoa Nguyen, Minh Duc Thieu, Huy Nguyen, Yeong Min Jang   +3 more
doaj   +1 more source

Ultra-fast 3D printing of assembly—free complex optics with sub-nanometer surface quality at mesoscale

International Journal of Extreme Manufacturing, 2023
Complex-shaped optical lenses are of great interest in the areas of laser processing, machine vision, and optical communications. Traditionally, the processing of complex optical lenses is usually achieved by precision machining combined with post ...
Shuai Peng, Jiawen Xu, Dongya Li, Jun Ren, Meng Zhang, Xiaolong Wang, Yu Liu   +6 more
doaj   +1 more source

Smart Closed‐Loop Systems in Personalized Healthcare: Advances and Outlook

Advanced Materials Technologies, EarlyView.
A smart closed‐loop e‐textile integrates multimodal sensing, onboard processing, wireless communication, and wearable power to enable real‐time physiological/biochemical monitoring and feedback‐controlled therapy. ABSTRACT Smart textiles represent a revolutionary frontier in healthcare, seamlessly blending fabric and advanced technologies to create ...
Safoora Khosravi, Sang Won Lee, Mohammad Abrar Uddin, Sina Hassanpoor, Neha Suvindran, Katherine Le, Harun Arkaz, Harishkumar Narayana, Saeid Soltanian, Danial Khorsandi, Negar Hosseinzadeh Kouchehbaghi, Taeil Kim, Yangzhi Zhu   +12 more
wiley   +1 more source