Reconfigurable nanoscale spin-wave directional coupler. [PDF]
Sci Adv, 2018 We propose a nanoscale spin-wave directional coupler that allows the realization of magnonic integrated circuits.
Wang Q +5 more
europepmc +7 more sources
All-optical switching in epsilon-near-zero asymmetric directional coupler [PDF]
Scientific Reports, 2022 We propose an all-optical switch based on an asymmetric directional coupler structure with epsilon-near-zero (ENZ) layer. The nonlinear optical properties the of ENZ layer are analyzed by hot-electron dynamics process, and the all-optical operating ...
Yanhua Sha +4 more
doaj +2 more sources
Coulomb-Blockade directional coupler [PDF]
Applied Physics Letters, 2004 A tunable directional coupler based on Coulomb Blockade effect is presented. Two electron waveguides are coupled by a quantum dot to an injector waveguide.
Beltram, F. +5 more
core +6 more sources
Tandem Mach Zehnder Directional Coupler Design and Simulation on Silicon Platform for Optical Coherence Tomography Applications [PDF]
Sensors, 2020 We design and compare the splitting ratio wavelength flatness of directional coupler (DC), Mach-Zehnder directional coupler (MZDC), and tandem MZDC.
Yi-Ting Lu +3 more
doaj +2 more sources
Integrated optical directional coupler biosensor
Optics Letters, 1996 We present measurements on biomolecular binding reactions, using a new type of integrated optical biosensor based on a planar directional coupler structure. The device is fabricated by Ag+-Na+ ion-exchange in glass and definition of the sensing region is
B. J. Luff +12 more
core +6 more sources
Plasmonic monolithic lithium niobate directional coupler switches [PDF]
Nature Communications, 2020 Lithium niobate is essential for electro-optic modulation, however, combining it with the attractive features of plasmonics is largely unexplored. Here, the authors demonstrate ultra-compact electrooptic switching with low voltage-length product, fast ...
Martin Thomaschewski +3 more
doaj +2 more sources
Quasi-Optical Four-Port Acoustic Filters Based on NEMS Coupled Beam Arrays [PDF]
MicromachinesTheoretical models are presented for quasi-optical four-port acoustic devices based on NEMS-coupled beam arrays. Analogies with coupled mode devices in microwaves, ultrasonics, optics, and electron wave optics are first reviewed, together with coupled ...
Richard Syms
doaj +2 more sources
Branch Waveguide Couplers with a frequency of 510 GHz for Terahertz Transmit/Receive Isolation Applications [PDF]
MicromachinesTo address the requirement of functioning as a transmit/receive isolation device in terahertz transceiver systems, in this paper, we present two high−isolation multi−branch waveguide directional couplers operating at a center frequency of 510 GHz. One is
Hao Li, Dehai Zhang, Jin Meng, Li Wang
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Design and Implementation of a Novel Directional Coupler for UHF RFID Reader [PDF]
Electronics, 2016 The directional coupler is applied to isolating RX from TX because of low cost and simplicity compared to the circulator in the radio-frequency identification (RFID) reader. Because of unequal phase velocity between odd and even mode, the drawback of the
Jianxiong Li +4 more
doaj +1 more source
Multisection Ultra-Broadband Directional Coupler Designed in MMIC Technology
IEEE Access, 2021 An ultra-broadband multisection directional coupler designed in Monolithic Microwave Integrated Circuit (MMIC) technology has been presented. It has been shown for the first time that it is possible to achieve bandwidths exceeding one frequency decade ...
Robert Smolarz +2 more
doaj +1 more source