Results 121 to 130 of about 30,411 (268)
Compact Single‐Shot Incoherent Edge Detection With a Polarization‐Multiplexed Metalens
Laser &Photonics Reviews, EarlyView.A polarization‐sensitive metalens enables single‐shot incoherent edge detection by generating two polarization‐dependent images and digitally subtracting them to realize a high‐pass optical transfer function. ABSTRACT Edge detection under incoherent illumination is highly desirable for compact vision systems but remains challenging due to the lack of ...
Weiyan Li +17 more
wiley +1 more source
The Non-Standard FDTD Method in Lossy Media [PDF]
, 2002 FDTD法の位相誤差を縮小した解析法にNon-Standard FDTD(NS-FDTD)法がある.本論文ではNS-FDTD法による損失媒質解析のため,損失を考慮した修正関数を用いた新たなNS-FDTD差分式を提案した.その伝搬特性を明らかにするため,損失を考慮したより一般的なNS-FDTD法の数値分散式及び安定条件を導出した.伝搬特性比較のため,損失媒質中でのFDTD法の数値分散式及び安定条件も新たに求めた.更に,伝搬シミュレーション結果より本導出の数値分散式と安定条件の妥当性を示した.その結果 ...
千藤, 雄樹 +3 more
core
Laser &Photonics Reviews, EarlyView.High‐Q superscar modes in growth‐defined triangular GaN micro‐prism resonators enable strong exciton–photon coupling and room‐temperature polariton condensation, offering a scalable platform for integrated III‐nitride polariton devices. ABSTRACT Group III‐nitride semiconductors are regarded as key materials for realizing polariton devices operating at ...
Chan‐Young Sung +4 more
wiley +1 more source
Laser &Photonics Reviews, EarlyView.An array of SiOx nanopillars is developed on ITO transparent rear contacts through nanoimprint lithography to promote light scattering in 500–600 nm bifacial ACIGS solar cells. This architecture increases the short‐circuit current density by 7.8 and 7.6 mA cm−2 under front (up to 36.2 mA cm−2) and rear illumination, respectively, offering a scalable ...
Enzo J. Ribeiro +11 more
wiley +1 more source
Laser &Photonics Reviews, EarlyView.A metasurface‐enabled full‐Stokes polarimeter is integrated with phase‐interrogated surface plasmon resonance microscopy to enable single‐shot recovery of intensity and differential phase. The non‐interferometric platform supports quantitative refractive‐index and thickness mapping, wavelength‐resolved sensing, and dynamic multi‐channel monitoring ...
Houxin Fan +5 more
wiley +1 more source
Propagation Characteristics in the Three-Dimensional Complex Nonstandard FDTD Method [PDF]
, 2004 本論文では,損失媒質中での3次元Complex Nonstandard FDTD(CNS-FDTD)法の伝搬特性を明らかにするため,3次元における数値分散式及び安定条件を導出した.理論及び数値的検討から,CNS-FDTD法は3次元においても通常のFDTD法より高精度かつ安定なことを示す.journal ...
Kashiwa, Tatsuya +2 more
core
Multispectral Mid‐Infrared Imaging With Incoherent Light via Adiabatic Upconversion
Laser &Photonics Reviews, EarlyView.We demonstrate room‐temperature broadband MIR imaging based on adiabatic frequency upconversion, driven by a Q‐switched pump laser and incoherent illumination. The small‐foot‐print system upconverts the spectral range to the visible domain, without scanning, thermal control and with spatial resolution below 20μm$20\mathrm{\mu}\mathrm{m}$.
Daniel Beitner +4 more
wiley +1 more source
Responsive Materials, EarlyView.This review summarizes CD‐based photocatalytic water splitting as a multiscale charge‐utilization process, linking photoexcitation, charge separation, interfacial transfer, charge storage, and catalytic consumption. It highlights how CD structures and interfaces regulate charge pathways and reaction microenvironments, and how advanced characterization,
Fan Liao, Yang Liu, Zhenhui Kang
wiley +1 more source
Photochemical fluorescence activation in arrays of microspherical containers
Responsive Materials, EarlyView.Photoresponsive microdroplets can be produced with precise structural control from organic solutions of a photoactivatable fluorophore and aqueous solutions of a surfactant at a microfluidic cross junction. These dye‐doped microspheres assemble spontaneously in close‐packed arrays in aqueous media.
William M. Piedra +4 more
wiley +1 more source
Metal/Si Nanowire Arrays for Hot Electron Catalysis
Small, EarlyView.Silicon nanowire arrays enhance plasmon‐driven catalysis by strengthening light–matter interactions on Au and Ag nanostructured coatings. Hotspot accessibility, rather than near‐field intensity alone, governs photocatalytic performance, while Ag nanoshells exhibit superior activity. The work establishes high‐surface‐area Si nanowire arrays as versatile
Theresa Bartschmid +7 more
wiley +1 more source