Results 111 to 120 of about 15,815 (311)

Absorption Enhancement of a Thin Silicon Film with a 3D Photonic Band Gap Crystal Back Reflector [PDF]

, 2019
Currently, the efficiency of thin silicon film solar cells is constrained by a limited intrinsic absorption of silicon. The efficiency could be significantly increased by using a highly efficient back reflector that sends unabsorbed light back into the ...
Saive, R., van der Vegt, J. J. W., Van Der Vegt, J. J.W.; id_orcid, Devashish, D., Van Der Vegt, J. J.W., Vos, Willem L.   +5 more
core   +1 more source

Investigation of the Effects of Electron Density Distribution on the Photonic Band Gap of Two-Dimensional Inhomogeneous Plasma Photonic Crystals [PDF]

فیزیک کاربردی ایران
This research adopts a novel approach to theoretically investigate the design of a two-dimensional plasmonic photonic crystal composed of 5×9 arrays of square plasma blocks with an inhomogeneous electron density distribution.
Fahimeh Karami-Garehgeshlagi, Farzaneh Bayat   +1 more
doaj   +1 more source

Dye‐Initiated Chirped Cholesteric Polymer Networks Exhibiting Broadband Dissipative Chiral Photonic Bands

Advanced Functional Materials, EarlyView.
A dye‐based photoinitiator acting as a structure‐directing element, guides the formation of a cholesteric polymer network that behaves as a chirped photonic structure with dissipative chiral coupling. Photopolymerization freezes a depth‐dependent helical pitch, broadening the Bragg resonance spectrum.
Alfredo Mazzulla, Pasquale Pagliusi, Gabriella Cipparrone   +2 more
wiley   +1 more source

Slotted photonic crystal sensors [PDF]

, 2013
Optical biosensors are increasingly being considered for lab-on-a-chip applications due to their benefits such as small size, biocompatibility, passive behaviour and lack of the need for fluorescent labels.
Mark Scullion, Krauss, Thomas, Andrea Di Falco, Thomas Krauss, Scullion, Mark G., Di Falco, Andrea, Thomas F. Krauss, Krauss, Thomas F., Mark G. Scullion, Scullion, Mark   +9 more
core   +1 more source

Janus Photonic Graphics by Stratified Assembly of Two Distinct Colloids

Advanced Functional Materials, EarlyView.
Double‐sided Janus photonic micropatterns with vivid structural colors are fabricated through a single‐step bottom‐up strategy. Density‐driven stratification and depletion‐mediated crystallization of PMMA and PS binary colloids lead to exclusive lattices on opposite surfaces under centrifugal force.
Young Geon Kim, Yongseok Jung, Sehee Yang, Jiwoo Lee, Shin‐Hyun Kim   +4 more
wiley   +1 more source

Algorithms and technologies for photonic crystal modelling

, 2009
In this thesis an investigation into the behaviour of light when passing through photonic crystals was carried out using numerical methods. Photonic crystals are expensive and difficult to fabricate so there is a requirement for computer simulations that
Hart, Elizabeth E, Hart, Elizabeth E.
core  

Observation of Cartesian light propagation through a three-dimensional cavity superlattice in a silicon photonic band gap crystal

Physical Review Research
We experimentally investigate peculiar light propagation inside a three-dimensional (3D) superlattice of resonant cavities that are confined within a 3D photonic band gap.
Manashee Adhikary, Marek Kozoň, Ravitej Uppu, Willem L. Vos   +3 more
doaj   +1 more source

The Determination of the Sensitivity of Refractive Index Sensors

Photonics
A new approach to determining the sensitivity of refractive index sensors is proposed. It has been shown that relative and absolute sensitivity show different results, and also, for the first time, it is demonstrated that relative sensitivity has ...
Ilya M. Efimov, Nikolay A. Vanyushkin, Ashot H. Gevorgyan   +2 more
doaj   +1 more source

Utilizing photonic band gap in triangular silicon carbide structures for efficient quantum nanophotonic hardware. [PDF]

Sci Rep, 2023
Saha P, Majety S, Radulaski M.
europepmc   +1 more source

Twin Crystal Moiré Metasurfaces for Crossing Flat‐Band Transport

Advanced Functional Materials, EarlyView.
This study introduces twin crystal moiré metasurfaces, breaking in‐plane symmetry to enable reconfigurable acoustic wave manipulation. By adjusting the twin angle and interlayer twist angle, various combinations of hyperbolic, flat bands, and elliptic states can be synthesized in the system.
Shida Fan, Chenglin Han, Kuan He, Chadi Ellouzi, Yunlong Wang, Li‐Qun Chen, Jie Sun, Zhaodong Xu, Chen Shen, Tianzhi Yang   +9 more
wiley   +1 more source