Results 121 to 130 of about 5,256,570 (379)
APL Photonics, 2017 We report on the realization of high-Q/V photonic crystal cavities in thin silicon membranes, with resonances around 1.55 μm wavelength. The cavity designs are based on a recently proposed photonic
A. Simbula +8 more
doaj +1 more source
Semi-analytic method for slow light photonic crystal waveguide design
, 2012 We present a semi-analytic method to calculate the dispersion curves and the group velocity of photonic crystal waveguide modes in two-dimensional geometries.
Auld +22 more
core +1 more source
Low-threshold photonic crystal laser [PDF]
, 2002 We have fabricated photonic crystal nanocavity lasers, based on a high-quality factor design that incorporates fractional edge dislocations. Lasers with InGaAsP quantum well active material emitting at 1550 nm were optically pumped with 10 ns pulses, and
Gogna, Pawan +4 more
core +2 more sources
Advanced Functional Materials, EarlyView.This study demonstrates an alternative method of creating charge‐stable negatively charged nitrogen vacancy (NV−) centers close to the diamond surface without high‐temperature annealing. By illuminating nitrogen‐implanted regions with a continuous‐wave 405 nm laser, NV− centers are induced, exhibiting electron spin coherence properties suitable for ...
Jens Fuhrmann +4 more
wiley +1 more source
Simulation of coupling optical modes in 1D photonic crystals for optoelectronic applications
Journal of Science: Advanced Materials and Devices, 2020 In this paper, one-dimensional photonic crystal distributed feedback structures were chosen for simulating the photonic modes. The corresponding photonic bands were calculated by using a numerical method for solving the master equation, while the ...
Ngoc Duc Le, Thuat Nguyen-Tran
doaj +1 more source
A novel view of plane wave expansion method in photonic crystals
, 2003 We propose a method derived from the simple plane wave expansion that can easily solve the interface problem between vacuum and a semi-infinite photonic crystal.
K. Sakoda +3 more
core +1 more source
Advanced Functional Materials, EarlyView.Triple Passivation Treatment (TPT) strategy enables 1.75 eV wide‐bandgap perovskite solar cells (WB‐PSCs) with suppressed halide phase segregation and n‐to‐p type surface transition. The photoluminescence quantum yield increases from 0.5 to 2.1%, indicating reduced non‐radiative losses.
Siming Huang +12 more
wiley +1 more source
Measurement of bound states in the continuum by a detector embedded in a photonic crystal
Light: Science & Applications, 2016 We directly measure optical bound states in the continuum (BICs) by embedding a photodetector into a photonic crystal slab. The BICs observed in our experiment are the result of accidental phase matching between incident, reflected and in-plane waves at ...
R. Gansch +9 more
semanticscholar +1 more source
Advanced Functional Materials, EarlyView.Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida +16 more
wiley +1 more source
Two mechanisms of disorder-induced localization in photonic-crystal waveguides
, 2017 Unintentional but unavoidable fabrication imperfections in state-of-the-art photonic-crystal waveguides lead to the spontaneous formation of Anderson-localized modes thereby limiting slowlight propagation and its potential applications. On the other hand,
García, Pedro David +4 more
core +1 more source