Results 71 to 80 of about 12,922 (291)

Cool Kitchen: Processing Starch and Eggshell Powder into Sustainable Coatings for Passive Daytime Cooling

Advanced Functional Materials, EarlyView.
A food‐grade cooling composite made from starch and recycled eggshell powder offers a scalable, ultra‐low‐cost solution for passive daytime radiative cooling. Easily prepared using basic kitchen tools, this material empowers communities, even in areas with limited infrastructure, to stay cooler during worsening summer heat waves.
Qimeng Song, Evelyn Kubacki, Alexander Berger, Markus Retsch   +3 more
wiley   +1 more source

Melt-processed all-polymer distributed Bragg reflector laser

Optics Express, 2008
We have assembled and studied melt-processed all-polymer lasers comprising distributed Bragg reflectors that were fabricated in large sheets using a co-extrusion process and define the cavities for dye-doped compression-molded polymer gain core sheets.
Kenneth D, Singer, Tomasz, Kazmierczak, Joseph, Lott, Hyunmin, Song, Yeheng, Wu, James, Andrews, Eric, Baer, Anne, Hiltner, Christoph, Weder   +8 more
openaire   +2 more sources

1.55 µm AlGaInAs/InP sampled grating laser diodes for mode-locking at THz frequencies [PDF]

, 2018
We report mode locking in lasers integrated with semiconductor optical amplifiers, using either conventional or phase shifted sampled grating distributed Bragg reflectors(DBRs).
Hou, Bin, Hou, Lianping, Liang, Song, Marsh, John Haig H., Tang, Song   +4 more
core   +1 more source

Tailoring Microstructure in Copper‐Based Conductive Metal–Organic Frameworks for Enhanced Chemiresistive Sensing and Uptake of Sulfur Dioxide

Advanced Functional Materials, EarlyView.
Precursor‐ and solvent‐mediated synthesis yields four Cu3(HHTP)2 morphologies with distinct physicochemical, sorption, and sensing properties toward SO2. Uptake capacities correlate with BET surface area, while sensing performance scales with particle aspect ratio.
Patrick Damacet, Zhuoran Zhong, Elí Sánchez‐González, Camille L. Slagle, Ilich A. Ibarra, Katherine A. Mirica   +5 more
wiley   +1 more source

Self-injection-locked thin-film regenerative laser amplifier

iScience
Summary: Organic lasers based on distributed feedback (DFB) microcavities have been extensively investigated. However, the application of these lasers is limited by their low output power and large beam divergence.
Yue Liu, Wenwen Wu, Xinping Zhang
doaj   +1 more source

Electrically induced Bragg Reflectors in InP/InGaAsP waveguides as ultrafast optoelectronic modulators [PDF]

Journal of the European Optical Society-Rapid Publications, 2008
In this paper, with the help of numerical simulations, we show how it is possible to create a Distributed Bragg Reflector by electrically inducing periodical refractive index variations in unperturbed III-V rib-waveguides to design different kind of ...
De Laurentis Martina, Irace Andrea, Breglio Giovanni   +2 more
doaj   +1 more source

Demonstration of a heterogeneously integrated III-V/SOI single wavelength tunable laser [PDF]

, 2013
A heterogeneously integrated III-V-on-silicon laser is reported, integrating a III-V gain section, a silicon ring resonator for wavelength selection and two silicon Bragg grating reflectors as back and front mirrors.
Bordel, D, Duan, GH, Fedeli, JM, Jany, C, Keyvaninia, Shahram, Lamponi, M, Le Liepvre, A, Lelarge, F, Make, D, Roelkens, Günther, Van Thourhout, Dries   +10 more
core   +2 more sources

Emergent Spin‐Glass Behavior in an Iron(II)‐Based Metal–Organic Framework Glass

Advanced Functional Materials, EarlyView.
A one‐pot, solvent‐free synthesis yields an Fe2+‐based metal‐organic framework (MOF) glass featuring a continuous random network structure. The material exhibits spin‐glass freezing at 14 K, driven by topological‐disorder and short‐range magnetic frustration, showcasing the potential of MOF glasses as a plattform for cooperative magnetic phenomena in ...
Chinmoy Das, Soma Salamon, Joachim Landers, Jan‐Benedikt Weiß, Wen‐Long Xue, Pascal Kolodzeiski, Roman Pallach, Heiko Wende, Sebastian Henke   +8 more
wiley   +1 more source

Enhancement of acoustic spin pumping by acoustic distributed Bragg reflector cavity

, 2020
Surface acoustic waves (SAWs) in the GHz frequency range can inject spin currents dynamically into adjacent nonmagnetic layers via spin pumping effect associated with ferromagnetic resonance.
Hwang, Yunyoung, Kondou, Kouta, Lagarrigue, Aurelien, Otani, Yoshichika, Puebla, Jorge, Xu, Mingran   +5 more
core   +1 more source

Cavity enhanced reflector based hybrid silicon laser [PDF]

, 2010
We present a novel approach to integrate III-V based hybrid lasers on a silicon platform using resonant grating structures as compact and highly-reflective ...
Baets, Roel, De Koninck, Yannick, Roelkens, Günther   +2 more
core   +2 more sources