Results 71 to 80 of about 3,391 (228)

Analysis of Wavelength Demultiplexer based on Photonic Crystals

, 2005
A wavelength demultiplexer based on photonic crystal waveguide (PCW) couplers is presented. A numerical approach based on the two-dimensional finite-difference time domain is employed to analyse, design and optimise the wavelength demultiplexer based on ...
AbdelMalek, Fathi, Bouchriha, Habib, Haxha, Shyqyri, Belhadj, Walid   +3 more
core   +1 more source

Photonic Crystal Based 2/3/6- Way Optical Splitter and Demultiplexer

Frontiers in Physics, 2019
We present 2-, 3-, and 6-way optical demultiplexer and optical filters based on coupled waveguide and photonic crystal cavities. Demultiplexers with 3 nm channel separation and optical splitters with different transmission efficiencies are presented. The
Richa Goyal, Richa Goyal, Banoj Kumar Nayak, Ashwin Tulapurkar, Venu Gopal Achanta   +4 more
doaj   +1 more source

An effective nano design of demultiplexer architecture based on coplanar quantum‐dot cellular automata

IET Circuits, Devices and Systems, 2021
Quantum‐dot cellular automata (QCA) are prospective nanotechnology with striking performance to tackle the shortcomings of complementary metal‐oxide‐semiconductor (CMOS) transistor‐based technology such as fabrication dimensions and switching speed.
Sonia Afrooz, Nima Jafari Navimipour
doaj   +1 more source

Toward Plasmonic Neuronal Architectures at the Nanometer Scale

Nanophotonics, Volume 15, Issue 7, 13 April 2026.
The concept of a plasmonic neural cell is realized through the integration of multiplexed optical inputs, static weighting, and nonlinear readout. The inputs are encoded in the orbital angular momentum of light and coupled into dielectric‐loaded plasmonic waveguides via nanostructured slits.
Christopher G. O. Weiß, Tobias Eul, Emily Kruel, Mario F. Pfeiffer, Bert Lägel, Benjamin Stadtmüller, Martin Aeschlimann   +6 more
wiley   +1 more source

Electrically Tunable On‐Chip Topological Photonics with Integrated Carbon Nanotubes

Advanced Functional Materials, Volume 36, Issue 21, 12 March 2026.
This work demonstrates electrically tunable on‐chip topological THz devices by integrating 2D carbon nanotube (CNT) sheets with valley‐Hall photonic crystals, enabling broadband transmission modulation (71% modulation depth) and tunable narrowband filtering (0.54 GHz shift) through electrically induced thermal tuning. This advancement paves the way for
Jifan Yin, Wenhao Wang, Thomas Caiwei Tan, Abhishek Kumar, Ridong Jia, Nikhil Navaratna, Ranjan Singh, Lijuan Xie   +7 more
wiley   +1 more source

Phononic Crystals: Physical Principles and Novel Structures [PDF]

AUT Journal of Mechanical Engineering
Phononic crystals (PnCs) are periodic materials that can control and manipulate the propagation of acoustic (or elastic) waves. The importance of paying attention to this area can be seen in applications such as wireless telecommunications, communication
Amir Rostami, Hassan Kaatuzian, Babak Rostami-Dogolsara   +2 more
doaj   +1 more source

Photo‐Reconfigurable Supercoupling Induced Transparency in On‐Chip Topological Edge State Cavities

Advanced Materials, Volume 38, Issue 13, 3 March 2026.
A novel supercoupling induced transparency (SIT) is demonstrated in a valley‐Hall photonic crystal. The valley vortices enable the supercoupling between a leaky and a guided topological edge state cavity even across a distance of 4.3 wavelengths, inducing a transparency window with negligible reflection.
Wenhao Wang, Ranjan Singh
wiley   +1 more source

Mode demultiplexer using angularly multiplexed volume holograms [PDF]

, 2013
This study proposes a volume holographic demultiplexer (VHDM) for extracting the spatial modes excited in a multimode fiber. A unique feature of the demultiplexer is that it can separate a number of multiplexed modes output from a fiber in different ...
Sato, Kunihiro, Kawabata, Kento, Tomita, Akihisa, Wakayama, Yuta, Okamoto, Atsushi   +4 more
core   +1 more source

Photonic Hybrid Integration: Strategies and Promises of Advanced Additive Manufacturing

Advanced Optical Materials, Volume 14, Issue 10, 13 March 2026.
Heterogeneous photonic integration combines wafer bonding, transfer printing, and advanced multi‐photon lithography to realize compact, adaptable photonic systems. This review highlights breakthroughs in hybrid materials, metrology, and 4D printing, revealing how the convergence of traditional and emerging fabrication unlocks scalable, high‐performance
Zhitian Shi, Huiyu Huang, Richard Penty, Qixiang Cheng   +3 more
wiley   +1 more source

Demonstration of Distributed Etched Diffraction Grating Demultiplexer

IEEE Photonics Journal, 2011
The design principles and measurement results for a compact shallow etched distributed diffraction grating waveguide demultiplexer are presented. The deeply etched diffraction grating facets are replaced with a shallow etched odd-order quarter wavelength
Amir Jafari, Andrew G. Kirk
doaj   +1 more source