Results 91 to 100 of about 88,392 (295)

Trapping light in air with membrane metasurfaces for vibrational strong coupling

Nature Communications
Optical metasurfaces can manipulate electromagnetic waves in unprecedented ways at ultra-thin engineered interfaces. Specifically, in the mid-infrared (mid-IR) region, metasurfaces have enabled numerous biochemical sensing, spectroscopy, and vibrational ...
Wihan Adi, Samir Rosas, Aidana Beisenova, Shovasis Kumar Biswas, Hongyan Mei, David A. Czaplewski, Filiz Yesilkoy   +6 more
doaj   +1 more source

Solid Tellurite Optical Fiber Based on Stack-and-Draw Method for Mid-Infrared Supercontinuum Generation

Fibers, 2017
Broadband, high-power mid-infrared (mid-IR) sources are critical for many applications. Compared to alternatives such as fluorides and chalcogenides, tellurite fibers are more robust and can handle much higher power.
Christopher Dunn, Fanting Kong, Guancheng Gu, Thomas Wade Hawkins, Maxwell Jones, Joshua Parsons, Andrew Runnion, Monica Tamara Kalichevsky-Dong, Reza Salem, Dongfeng Liu, David Gardner, Peter Fendel, Ron Synowicki, Eric Cheung, Jean-Thomas Gomes, Laure Lavoute, Dmitry Gaponov, Sébastien Février, Liang Dong   +18 more
doaj   +1 more source

Optical Evidence of Itinerant-Localized Crossover of $4f$ Electrons in Cerium Compounds

, 2016
Cerium (Ce)-based heavy-fermion materials have a characteristic double-peak structure (mid-IR peak) in the optical conductivity [$\sigma(\omega)$] spectra originating from the strong conduction ($c$)--$f$ electron hybridization.
Aoki, Haruyoshi, Kimura, Shin-ichi, Kwon, Yong Seung, Matsumoto, Yuji, Sakai, Osamu   +4 more
core   +1 more source

Tough, Ductile, and Strong Hard‐Soft Cementitious Composite Enabled by Multi‐Material Additive Manufacturing

Advanced Materials, EarlyView.
Drawing inspiration from the layered hard‐soft architecture found in sea sponges, this work establishes a new framework for architected cementitious composites (ACC) through multi‐material additive manufacturing (MMAM) process. The integration of mortar and elastomer phases into layered architectures enables synergistic toughening mechanisms, including
Aimane Najmeddine, Shashank Gupta, William Makinen, Zayvinn Lin, Krystal Delnoce, Reza Moini   +5 more
wiley   +1 more source

Polymorph‐Specific Electronic Transduction in WO3 during Molecular Sensing

Advanced Materials, EarlyView.
Metal‐oxide polymorphs with similar surface chemistry can nevertheless exhibit distinct sensing properties. In γ‐ and ε‐WO3, analyte adsorption appears comparable; yet, only ε‐WO3 induces a pronounced lattice electronic perturbation that accommodates charge in sub‐conduction band minimum states.
Matteo D'Andria, Meng Yin, Stefan Neuhauser, Vlasis G. Mavrantzas, Ying Chen, Ken Suzuki, Andreas T. Güntner   +6 more
wiley   +1 more source

Deeply subwavelength mid-infrared phase retardation with α-MoO3 flakes

Communications Materials
Phase retardation is a cornerstone of modern optics, yet, at mid-infrared (mid-IR) frequencies, it remains a major challenge due to the scarcity of simultaneously transparent and birefringent crystals.
Michael T. Enders, Mitradeep Sarkar, Maxime Giteau, Aleksandra Deeva, Hanan Herzig Sheinfux, Mehrdad Shokooh-Saremi, Frank H. L. Koppens, Georgia T. Papadakis   +7 more
doaj   +1 more source

A Colloidal Quantum Dot Thermistor and Bolometer

Advanced Materials, EarlyView.
This work introduces colloidal quantum dot thermistors employing a potential barrier structure to tune the activation energy of transport and hence the temperature coefficient of resistance (TCR). Upon integration with plasmonic absorbers, the CQD‐based bolometer device enables room‐temperature wavelength‐selective photodetection across the mid‐ to ...
Gaurav Kumar, Mariona Dalmases, Nima Taghipour, Rajesh Bera, Guy L. Whitworth, Goretti Torres Perez, Miguel Dosil, Gerasimos Konstantatos   +7 more
wiley   +1 more source

Near-infrared spectra of ISO selected Chamaeleon I young stellar objects

, 2002
We present 0.95--2.5 micron moderate (R = 500) resolution spectra of 19 ISOCAM detected sources in the Chamaeleon I dark cloud. Thirteen of these stars are candidate very low mass members of the cloud proposed by Persi et al.
Allard, Baraffe, Bessell, Briceño, Burrows, Cambrésy, Carr, Carr, Casali, Casali, Comerón, Comerón, Cushing, D'Antona, Feigelson, Feigelson, Gauvin, Greene, Greene, Gómez, Henry, Hughes, Johnson, Jones, Kenyon, Kenyon, Kirkpatrick, Kirkpatrick, Kleinmann, Lawson, Leggett, Lucas, Luhman, Luhman, Luhman, M. Gómez, Meyer, Meyer, Muzerolle, Najita, Neuhäuser, Neuhäuser, P. Persi, Palla, Perrin, Persi, Persi, Pickles, Richichi, Rieke, Schwartz, Strom, Suto, Swenson, van Belle, Wallace, Wallace, Wilking   +57 more
core   +1 more source

Direct Synthesis of High‐Valence Protein@UiO‐66 Composites: Linking Crystallization Pathways to Protein Encapsulation

Advanced Materials, EarlyView.
This work reports a direct, biocompatible method to synthesize UiO‐66, enabling one‐step encapsulation of proteins without compromising crystallinity or activity. Using advanced in situ and ex situ techniques, the study reveals that proteins integrate concurrently with MOF growth, forming crystalline protein@UiO‐66 nanoparticles, and provide insight ...
Jesús Cases Díaz, Jana Glatz, Elisa Merced Olivas, Ramon Pons, Joseph P. Patterson, Mónica Giménez‐Marqués   +5 more
wiley   +1 more source

Recent Progress of Silicon Photonics for Middle-Infrared Application

Dianxin kexue, 2015
“Capacity Crunch”in NIR field needs to be forestalled since the pressure of information transmission，processing and storage is continually growing.Silicon photonics，with compatibility of CMOS，compact structure and low fabrication cost，shows its ...
Haowen Shu, Zhaotang Su, Xingjun Wang, Zhiping Zhou   +3 more
doaj   +2 more sources