Results 61 to 70 of about 438,669 (294)

Analysis of hybrid dielectric-plasmonic slot waveguide structures with 3D Fourier Modal Methods [PDF]

Journal of the European Optical Society-Rapid Publications, 2013
Recently, plasmonic waveguides have been intensively studied as promising basic building blocks for the construction of extremely compact photonic devices with subwavelength characteristic dimensions.
Čtyroký J., Kwiecien P., Richter I.
doaj   +1 more source

Square dielectric THz waveguides

Optics Express, 2016
A holey cladding dielectric waveguide with square cross section is designed, simulated, fabricated and characterized. The TOPAS waveguide is designed to be single mode across the broad frequency range of 180 GHz to 360 GHz as shown by finite-difference time domain simulation and to robustly support simultaneous TE and TM mode propagation.
N, Aflakian, N, Yang, T, LaFave, R M, Henderson, K K, O, D L, MacFarlane   +5 more
openaire   +2 more sources

Advances in Halide Perovskites for Photon Radiation Detectors

Advanced Materials Technologies, EarlyView.
This work highlights recent progress in perovskite‐based photon radiation detectors, covering organic–inorganic hybrid, inorganic, lead‐free double, and vacancy‐ordered halide perovskites. Their detection performance is compared, material‐specific advantages and challenges are examined, and provides insight into current limitations and future ...
Liangling Wang, Jieqi Wang, Xiaojun Cui, Carsten Ronning   +3 more
wiley   +1 more source

Coupling characteristics between cylindrical hybrid plasmon waveguide and cylindrical silicon nanowire waveguide

AIP Advances, 2021
Cylindrical waveguides have a wide range of applications in photonic integrated circuits because of lower transmission losses. This paper proposes a directional coupler composed of a cylindrical silicon nanowire waveguide and a metal-based cylindrical ...
Jian-Ping Liu, Wei-Lin Wang, Fang Xie, Chen Li, Xia Zhou, Ji-Hai Yu, Si-Qi Li, Ling-Ling Wang   +7 more
doaj   +1 more source

Integrated plasmon and dielectric waveguides

Optics Express, 2004
We have designed, fabricated and characterized surface plasmon waveguides for near infrared light in the telecommunications spectrum. These waveguides exhibit losses of -1.2dB/microm and can guide light around 0.5 microm bends. Light can also be efficiently coupled between more conventional silicon waveguides and these plasmon waveguides with compact ...
Michael, Hochberg, Tom, Baehr-Jones, Chris, Walker, Axel, Scherer   +3 more
openaire   +2 more sources

Wood‐Derived Nanocellulose‐Biocarbon Fresnel‐Zone Plate Lenses for Sub‐THz Frequency Applications

Advanced Materials Technologies, EarlyView.
Wood‐derived nanocellulose and lignin‐based biocarbon were combined to fabricate fully bio‐based Fresnel zone plate (FZP) lenses for sub‐terahertz frequencies. These sustainable FZP lenses exhibit low dielectric loss and high directivity, achieving performance comparable to that of metallic references, and remain functional under environmental stress ...
Riikka Haataja, Mikko Kokkonen, Niina Halonen, Sami Myllymäki, Umair Rafique, Mandeep Singh, Ossi Laitinen, Heli Jantunen, Kristiina Oksman, Henrikki Liimatainen   +9 more
wiley   +1 more source

Efficient Optical Coupling between Dielectric Strip Waveguides and a Plasmonic Trench Waveguide

Photonics
Buttcoupling is the most efficient way to excite surface plasmon polariton (SPP) waves at dielectric/metal interfaces in order to realize applications in broadband and ultra-compact integrated circuits (IOCs).
Jia-Ren Wu, Anjali Chandel, Chiashain Chuang, Sheng Hsiung Chang   +3 more
doaj   +1 more source

Line Defect-Layered EBG Waveguides in Dielectric Substrates

International Journal of Antennas and Propagation, 2018
A dielectric-based multilayer structure composed of U-shaped rings (ML-UR) is used to develop a class of novel electromagnetic band gap (EBG) slab waveguide. The structure has two band gaps that narrow down as dielectric constant is increased.
Hassna Ouassal, Jafar Shaker, Langis Roy, Khelifa Hettak, Reza Chaharmir   +4 more
doaj   +1 more source

Aerosol Jet Printing of Benzocyclobutene as a Thermally Stable, Low‐Loss Dielectric for Multilayer Microwave Electronics

Advanced Materials Technologies, EarlyView.
Multilayer aerosol jet printed components with a low‐loss, thermally stable dielectric are demonstrated using benzocyclobutene. Ink formulation and in‐line droplet evaporation control support high‐quality, versatile, and stable printing performance. A specialized measurement for low‐loss materials reveals promising microwave properties, which, combined
Md Ramjan Ali, Trent Moritz, Mohammad Tayeb Al Qaseer, Ethan B. Secor   +3 more
wiley   +1 more source

Liquid‐Crystal‐Based Reconfigurable Intelligent Surface for 7 GHz Mobile Communication

Advanced Materials Technologies, EarlyView.
The glass‐based liquid‐crystal reconfigurable intelligent surface (LC‐RIS) integrates active‐matrix driving and blind‐greedy phase optimization within a 5G‐NR OFDM framework. This enables continuously tunable and autonomous enhancement of wireless coverage. Leveraging the transparency and manufacturability of liquid crystal panels, it is ideally suited
Tien‐Lun Ting, Yuh‐Chyi Chang, Yi‐Chan Hung, Cheng‐Yuan Hsiao, Chao‐Kai Wen, Tsung‐Hsien Lin   +5 more
wiley   +1 more source