Results 151 to 160 of about 464,771 (298)

Constant hue loci across spectral bandwidth

Journal of Vision, 2010
Y. Mizokami, J. S. Werner, M. A. Crognale, M. A. Webster   +3 more
openaire   +1 more source

Microstructured Electrode‐Piezopolymer Interface for Ultrasound Transducers With Enhanced Flexibility and Acoustic Performance

Advanced Materials Technologies, EarlyView.
Flexible piezopolymer ultrasound transducers are engineered by tailoring the electrode–piezopolymer interface using metallic, flake‐based, and porous graphene electrodes. Laser‐induced graphene's porous structure enables polymer infiltration, strengthening interfacial coupling and enhancing piezoelectric response and acoustic output.
Spencer Hagen, Dulcce A. Valenzuela, Parag V. Chitnis, Shirin Movaghgharnezhad   +3 more
wiley   +1 more source

Decoupling the Impact of Deep‐Trap and Band‐Tail States on PbS Quantum Dot Photodetectors via Alkylamine Engineering

Advanced Materials Technologies, EarlyView.
Band‐tail and deep trap states are effectively disentangled through the use of selective alkylamine additives. PA‐driven 2D ordering narrows band tails, while HA enhances halide passivation and Pb coordination to suppress deep traps. A comparative study of their CQD short‐wave infrared (SWIR) photodetectors further reveals whether band‐tail states or ...
Huaying Zhong, Fan Fang, Jasper Guido Ebel, Qian Chen, Lixin Li, Kaiyu Luo, Yihan Song, Andong Zhong, Haibo Zhu, Xiao Wang, Kaijie Ling, Yong Xia, Haodong Tang, Wei Chen, Peter Müller‐Buschbaum   +14 more
wiley   +1 more source

Cross‐Phase Modulation via Time‐Varying Epsilon‐Near‐Zero Metasurfaces

Advanced Optical Materials, EarlyView.
Time‐varying epsilon‐near‐zero metasurfaces are shown to enable cross‐phase modulation beyond conventional ENZ excitation. By engineering dual absorption bands and exploiting oblique ultrafast pumping, large and broadband frequency translations are achieved at low pump energies.
Rakesh Dhama, Md Imran Hossain, Jesse Pietila, Thomas Fordell, Humeyra Caglayan   +4 more
wiley   +1 more source

Spectral Selectivity Enhancement in Solar Absorber Multilayers through Titanium Oxynitride Thin Film Modulation

Advanced Optical Materials, EarlyView.
Optical and plasmonic properties of TiN and Ti(O)N thin films were tuned at the synthesis stage by modulating the oxygen pressure during room‐temperature pulsed laser deposition. Ti(O)N thin films exhibiting a highly metallic and peculiar double‐epsilon‐near‐zero (DENZ) behavior were produced.
Claudia P. Hallqvist, Cristina Mancarella, Marco Agozzino, Salvatore Lucchese, Luca Mascaretti, Ivan Richter, Alessio Lamperti, Demosthenes C. Koutsogeorgis, Nikolaos Kalfagiannis, Andrea Li Bassi   +9 more
wiley   +1 more source

Bridging Optical and Mechanical Metamaterial/Metasurface Realms Toward Integrated Meta‐Systems

Advanced Optical Materials, EarlyView.
This perspective describes the rise of metamaterials in the field of materials science, specifically with optical and mechanical functionality. Fundamentals of both optical and mechanical metamaterials are discussed with a review of state‐of‐the‐art metamaterial science.
Justin Brackenridge, Jaejun Lee, Vladimir V. Tsukruk   +2 more
wiley   +1 more source

Experimental Evidence of Free Carrier Generation in 2D Hybrid Organic–Inorganic Perovskites

Advanced Optical Materials, EarlyView.
ABSTRACT Despite the significant potential of 2D hybrid organic–inorganic perovskites (2DHOIPs) for high‐efficiency optoelectronics application‐comparable to their 3D counterparts, the fundamental carrier photogeneration remains unclear. In contrast to conventional ultrafast optical property characterization, we use ultrafast photocurrent spectroscopy ...
Tuhin Ghosh, Pan Adhikari, Yao Gao, Apparao M. Rao, Dawen Li, Haimei Zheng, Ying Shi, Letian Dou, Jianbo Gao   +8 more
wiley   +1 more source

Velocity and Angle Tracking of Fast Targets Using a Bandwidth-Coded Hybrid Chirp FMCW Radar. [PDF]

Sensors (Basel)
Gökdemir B, Dalveren Y, Kara A, Derawi M.   +3 more
europepmc   +1 more source

Quasi‐Random Nanostructured Substrates for Enhancing Light Outcoupling in OLEDs

Advanced Optical Materials, EarlyView.
ABSTRACT Organic light–emitting diodes (OLEDs) suffer from low light outcoupling efficiency, with much of the generated light trapped within the device. To address this issue, we present a scalable, maskless, polymer‐free strategy for fabricating quasi‐random external nanowire (ENW) and internal nanocorrugation (INC) structures directly on glass ...
Mehdi Zarei, Jesse Wisch, Khashayar Mohammadi, James C. Loy, Mirza Sahaluddin, Golnaz Najaf Tomaraei, Mostafa Bedewy, Barry P. Rand, Paul W. Leu   +8 more
wiley   +1 more source

A compact circularly polarized ultra-wide bandwidth implantable antenna for multiple scenarios. [PDF]

Sci Rep
Song Z, Yang D, Wang Y, Shi Y, Zheng X, Wang L.   +5 more
europepmc   +1 more source