Results 51 to 60 of about 3,100 (213)

Output Feedback Displacement Control for Piezoelectric Deformable Mirrors With Unknown Hysteresis and Dynamics Coupling

IEEE Photonics Journal
Deformable mirrors (DMs) are key components of adaptive optics (AO) systems, enabling precise wavefront control in a wide range of applications.
Mohammad Al Saaideh, Lihong Zhang, Mohammad Al Janaideh   +2 more
doaj   +1 more source

Stroke saturation on a MEMS deformable mirror for woofer-tweeter adaptive optics

, 2009
High-contrast imaging of extrasolar planet candidates around a main-sequence star has recently been realized from the ground using current adaptive optics (AO) systems. Advancing such observations will be a task for the Gemini Planet Imager, an upcoming "
Bruce Macintosh, Conan, Conan, Daren Dillon, Donald Gavel, Evans, Evans, Evans, Gavel, Gavel, Hardy, Hudgin, Kalas, Katie Morzinski, Lagrange, Lavigne, Macintosh, Malbet, Marois, Marois, Morzinski, Morzinski, Morzinski, Noll, Norton, Severson, Sommargren, Soummer, Stewart, Thomas, Vogel   +30 more
core   +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

Embedded solar adaptive optics telescope: achieving compact integration for high-efficiency solar observations

Opto-Electronic Advances
Adaptive optics (AO) has significantly advanced high-resolution solar observations by mitigating atmospheric turbulence. However, traditional post-focal AO systems suffer from external configurations that introduce excessive optical surfaces, reduced ...
Naiting Gu, Hao Chen, Ao Tang, Xinlong Fan, Carlos Quintero Noda, Yawei Xiao, Libo Zhong, Xiaosong Wu, Zhenyu Zhang, Yanrong Yang, Zao Yi, Xiaohu Wu, Linhai Huang, Changhui Rao   +13 more
doaj   +1 more source

Multilayer Active Shell Mirrors for Space Telescopes [PDF]

, 2016
A novel active mirror technology based on carbon fiber reinforced polymer (CFRP) substrates and replication techniques has been developed. Multiple additional layers are implemented into the design serving various functions.
Baffes, Barbee, Bolcar, Dalcanton, Hickey, Laslandes, Massarello, Patterson, Steeves   +8 more
core   +1 more source

Vision‐Augmented Wearable Interfaces: Bioinspired Approaches for Realistic AI‐Human‐Machine Interaction

Advanced Materials Technologies, EarlyView.
This review presents recent progress in vision‐augmented wearable interfaces that combine artificial vision, soft wearable sensors, and exoskeletal robots. Inspired by biological visual systems, these technologies enable multimodal perception and intelligent human–machine interaction.
Jihun Lee, Gwuidong Ryu, Kisoo Kim, Feng Xu, Won Gu Lee   +4 more
wiley   +1 more source

Functional Persistent Luminescent Thin Films and Glasses: Materials, Processing, and Future Challenges

Advanced Optical Materials, EarlyView.
Beyond conventional powders, persistent luminescent thin films and glass‐based composites offer transformative potential for transparent, stable photonic devices. This work evaluates diverse processing routes and structure‐property correlations essential for achieving optical transparency and environmental stability.
Luidgi Giordano, Leonnam G. Merízio, Elaine A. de Mattos, Yaman M. Nicolai, Victor M. P. da Silva, Israel D. Marques, Verônica C. Teixeira, Everton Bonturim, Rogéria R. Gonçalves, Danilo Manzani, Lucas C. V. Rodrigues   +10 more
wiley   +1 more source

Removing Orbital Debris with Lasers

, 2011
Orbital debris in low Earth orbit (LEO) are now sufficiently dense that the use of LEO space is threatened by runaway collisional cascading. A problem predicted more than thirty years ago, the threat from debris larger than about 1 cm demands serious ...
Alexander Rubenchik, Bespalov, Bogdan Marcovici, Bradley, Bunkin, Carrick, Chengyu, Claude R. Phipps, Duane A. Liedahl, E. Victor George, Egerman, Hayhurst, Henderson, James E. Trebes, James P. Reilly, Kessler, Kevin L. Baker, Kulagin, Kuznetsov, LaFortune, Liedahl, Liou, Liukonen, Lyn D. Pleasance, MacDonald, Michael T. Valley, Phipps, Phipps, Phipps, Phipps, Phipps, Priedhorsky, Rubenchik, Saha, Scot S. Olivier, Simms, Sinko, Stephen B. Libby, Strafford, Wilson, Zhu, Кantrоwitz   +41 more
core   +1 more source

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

Advanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska, Kaushik Jayaram, Nicole Xu   +2 more
wiley   +1 more source

Predicting and Rationalizing Piezoelectricity in Racemic Bioorganic Molecular Crystals

Angewandte Chemie, EarlyView.
Racemic molecular crystals, composed of equal mixtures of chiral enantiomeric components, are predicted to exhibit significant piezoelectric responses and favourable mechanical flexibility. This study identifies organic and bioorganic racemates as promising candidates for sustainable, lead‐free materials, enabling next‐generation applications in energy
Shubham Vishnoi, Sarah Guerin
wiley   +2 more sources