Results 111 to 120 of about 11,025,573 (223)
Laser &Photonics Reviews, EarlyView.A dual‐layer metasurface is integrated on a fiber‐array facet to realize compact, plug‐and‐play free‐space optical links with cylindrical vector beam (CVB) space‐division multiplexing. An optimized off‐axis collimation layer steers multiple channels, while a Dammann vortex layer performs polarization–topology conversion for bidirectional CVB (de ...
Xipeng Lu +6 more
wiley +1 more source
From Planar to 3D Nanophotonic Lenses: Advancing Design, Fabrication, and Applications
Laser &Photonics Reviews, EarlyView.Three‐dimensional nanophotonic lenses are enabled by an integrated workflow that links design parameterization, full‐wave electromagnetic simulation, computational optimization, and freeform fabrication. This Review summarizes how these tools expand optical design freedom beyond a single patterned plane by enriching the local meta‐atom response and ...
Wei Zhu +2 more
wiley +1 more source
Fabrication‐Tolerant GaAs/SiN Coupling Above the Loss Threshold for Quantum Photonic Applications
Laser &Photonics Reviews, EarlyView.Reliable low‐loss optical coupling between GaAs and SiN waveguides for heterogeneous integration of single‐photon sources is demonstrated. By developing a fabrication‐aware numerical design approach and accounting for experimentally measured fabrication variations and scattering losses, coupling efficiencies meeting the < 10% loss requirement for ...
Miloš Ljubotina +9 more
wiley +1 more source
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
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
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
The FDTD(2,4) Method for Highly Accurate Acoustic Analysis in the Three Dimensional Space [PDF]
, 2002 近年,音響分野においてシミュレーションが重要となってきている.音響シミュレーション法としてFDTD法(Finite-Difference Time-Domain method)が提案されている.しかし,この手法は室内音響伝搬などの大規模伝搬解析においては位相誤差が無視できなくなり解析上問題となる.そのため,位相誤差が縮小される高精度な解析法が望まれている.本論文では,高精度解析法である時間及び空間についてそれぞれ2次及び4次精度の3次元FDTD(2,4)法の定式化を行った.また ...
千藤, 雄樹 +4 more
core
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