Results 101 to 110 of about 597,606 (332)

Light collection from scattering media in a silicon photonics integrated circuit [PDF]

open access: yes, 2011
We present a silicon photonics integrated circuit to efficiently couple scattered light into a single mode waveguide. By modulating the phase of N light-capturing elements, the collection efficiency can be increased by a factor ...
Baets, Roel   +3 more
core   +1 more source

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

open access: yesAdvanced 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   +3 more
wiley   +1 more source

Optical Supersymmetry in the Time Domain [PDF]

open access: yes, 2019
Originally emerged within the context of string and quantum field theory, and later fruitfully extrapolated to photonics, the algebraic transformations of quantum-mechanical supersymmetry were conceived in the space realm.
García-Meca, Carlos   +2 more
core   +1 more source

Photonic Engineering Enables All‐Passive Upconversion Imaging with Low‐Intensity Near‐Infrared Light

open access: yesAdvanced Functional Materials, EarlyView.
A passive upconversion imaging system enables the observation of scenes illuminated by low‐intensity incoherent near‐infrared light from 750 to 930 nm, by converting it into the visible without the use of external power. The upconverter is enabled by triplet–triplet annihilation in a bulk heterojunction, with absorption enhanced by plasmonic resonators
Rabeeya Hamid   +13 more
wiley   +1 more source

Topological photonics [PDF]

open access: yesReviews of Modern Physics, 2018
Topological photonics is a rapidly emerging field of research in which geometrical and topological ideas are exploited to design and control the behavior of light.
T. Ozawa   +10 more
semanticscholar   +1 more source

Nonradiating Photonics with Resonant Dielectric Nanostructures [PDF]

open access: yes, 2019
Nonradiating sources of energy have traditionally been studied in quantum mechanics and astrophysics, while receiving a very little attention in the photonics community.
Bogdanov, Andrey   +4 more
core   +2 more sources

Electroactive Liquid Crystal Elastomers as Soft Actuators

open access: yesAdvanced Functional Materials, EarlyView.
Electroactive liquid crystal elastomers (eLCEs) can be actuated via electromechanical, electrochemical, or electrothermal effects. a) Electromechanical effects include Maxwell stress, electrostriction, and the electroclinic effect. b) Electrochemical effects arise from electrode redox reactions.
Yakui Deng, Min‐Hui Li
wiley   +1 more source

Optical Frequency Comb Generation based on Erbium Fiber Lasers

open access: yesNanophotonics, 2016
Optical frequency combs have revolutionized optical frequency metrology and are being actively investigated in a number of applications outside of pure optical frequency metrology. For reasons of cost, robustness, performance, and flexibility, the erbium
Droste Stefan   +4 more
doaj   +1 more source

An Integrated-Photonics Optical-Frequency Synthesizer

open access: yes, 2017
Integrated-photonics microchips now enable a range of advanced functionalities for high-coherence applications such as data transmission, highly optimized physical sensors, and harnessing quantum states, but with cost, efficiency, and portability much ...
A Bluestone   +65 more
core   +1 more source

Focused-ion-beam processing for photonics [PDF]

open access: yes, 2007
Although focused ion beam (FIB) processing is a well-developed technology for many applications in electronics and physics, it has found limited application to photonics.
Ay, Feridun   +2 more
core   +2 more sources

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