Results 41 to 50 of about 37,762 (301)
Scatterometer and Intensity Distribution Meter With Screen Image Synthesis
IEEE Photonics Journal, 2020 A screen image synthesis (SIS) system is superior than the conventional methods in terms of high-speed measurement and low screen-cross-talk noise when used as a whole-field light-distribution meter.
Yeh-Wei Yu +7 more
doaj +1 more source
Advanced Functional Materials, Volume 36, Issue 49, 18 June 2026.We investigate how side‐chain chemistry and hydrogen bonding affect electrochemical doping in poly(propylenedioxythiophene) polymers. Replacing oligoether side chains with hydroxyl or carboxylic acid groups nearly triples electrochemical conductivity.
Joshua M. Rinehart +5 more
wiley +1 more source
Application of A Frequency Chirped RF Intensity Modulated 532 nm Light Source in Underwater Ranging
IEEE Photonics Journal, 2020 A radio-frequency (RF) intensity-modulated light source at 532 nm was built for underwater ranging. The intensity of a narrow-linewidth laser at 1064 nm was modulated via a Mach-Zehnder electro-optical modulator.
Kun Li +6 more
doaj +1 more source
Optical Precursor of a Single Photon [PDF]
Physical Review Letters, 2011 We report the direct observation of optical precursors of heralded single photons with step- and square-modulated wave packets passing through cold atoms. Using electromagnetically induced transparency and the slow-light effect, we separate the single-photon precursor, which always travels at the speed of light in vacuum, from its delayed main wave ...
Zhang, Shanchao +5 more
openaire +3 more sources
Advanced Functional Materials, Volume 36, Issue 49, 18 June 2026.An integrated material platform combining engineered SiNx thin films and printable ZrO2 nanoparticle‐embedded resin enables broadband achromatic metalenses from the ultraviolet to visible range. The demonstrated meta‐optics achieve near‐diffraction‐limited focusing with minimal chromatic aberration.
Hyunjung Kang +3 more
wiley +1 more source
Exciton Binding Energy of Phosphorescent Emitter Molecules in Organic Light‐Emitting Diodes
Advanced Functional Materials, EarlyView.Energy level alignment is key to efficient OLED design, yet determining LUMO energies remains challenging. A methodology based on field‐induced dissociation and kinetic Monte Carlo simulations is presented to extract LUMO energies of iridium‐based phosphorescent emitters from their exciton binding energy.
Hiroki Tomita +6 more
wiley +1 more source
Ultrasensitive Anti‐Stokes Luminescence Thermometry in Transition Metal Dichalcogenide Monolayers
Advanced Functional Materials, EarlyView.We demonstrate a highly sensitive nanothermometer using anti‐Stokes photoluminescence, also known as photoluminescence upconversion (UPL), in monolayer tungsten disulfide. A strong resonantly enhanced UPL is observed, confirming the central role of optical phonons in the PL upconversion mechanism.
Sharada Nagarkar +6 more
wiley +1 more source
Super-resolution imaging using nano-bells
Scientific Reports, 2018 In this paper we demonstrate a new scheme for optical super-resolution, inspired, in-part, by PALM and STORM. In this scheme each object in the field of view is tagged with a signal that allows them to be detected separately.
Rafael Fuentes-Domínguez +4 more
doaj +1 more source
Crystals, 2021 The multifunctional snapshot angle-resolved spectroscopy (ARS) system capable of electroluminescence, photoluminescence, and reflectance measurements for thin film devices is developed based on the k-space imaging technique.
Jui-Fen Chang +5 more
doaj +1 more source
Broadband low-repetition-rate mode-locked fiber laser for swept source optical coherence tomography [PDF]
15th International Conference on Information Optics and Photonics (CIOP2024), 6-10 August 2024, Xi’an, China202508 bcchVersion of RecordRGCOthersThis work was supported in part by the Research Grants Council, University Grants Committee of Hong Kong SAR (
Huang, D, Dang, L, Li, F, Zhu, W
core +1 more source