Results 61 to 70 of about 59,852 (304)

Four-wave mixing and generation of terahertz radiation in an alternating-strain coupled quantum-well structure [PDF]

open access: yes, 1996
We propose a scheme for exciting steady-state tunneling oscillations of an electronic wave packet in a semiconductor coupled quantum-well structure with strain of the opposite polarity in the two wells. A detailed study of the four-wave mixing process in
Paiella, Roberto, Vahala, Kerry J.
core   +1 more source

Integration of Low‐Voltage Nanoscale MoS2 Memristors on CMOS Microchips

open access: yesAdvanced Functional Materials, EarlyView.
This article presents the first monolithic integration of nanoscale MoS2‐based memristors into the back‐end‐of‐line of foundry‐fabricated CMOS microchips in a one‐transistor‐one‐resistor (1T1R) architecture. The MoS2‐based 1T1R cells exhibit forming‐free, nonvolatile resistive switching with ultra‐low operating voltages, low cycle‐to‐cycle variability ...
Jimin Lee   +16 more
wiley   +1 more source

Polarization-Independent All-Optical Regenerator for DPSK Data

open access: yesPhotonics, 2014
We demonstrate polarization-independent simultaneous all-optical phase-preserving amplitude regeneration and wavelength conversion of NRZ differential phase shift keying (DPSK) data by four-wave mixing (FWM) in a semiconductor optical amplifier (SOA ...
Valeria Vercesi   +3 more
doaj   +1 more source

半導体光増幅器を用いた光デジタル・アナログ相互変換 [PDF]

open access: yes, 2020
 デジタル・アナログ変換(D/A変換)とアナログ・デジタル変換(A/D変換)は,電子デバイスや光学システム内でデジタル信号とアナログ信号を接続するための重要な機能であり,通信ネットワークを含む幅広い分野で利用されている.近年,デジタル信号処理技術の発達に伴い,より高性能なD/A変換器やA/D変換器の需要が高まっている.しかし,電気的なD/A変換器やA/D変換器は,ジッタ制限,電磁干渉,RC遅延などの高速動作における固有のボトルネックを有している.よって,コストや複雑さを犠牲とし ...
岡田 拓也
core   +1 more source

Novel Broadband Amplifier for Mid-Infrared Semiconductor laser and applications in spectroscopy [PDF]

open access: yes, 2010
An amplifier design for broadband Mid-IR buried-hetero (BH) structure epitaxial laser is presented, and external cavity design based on this amplifier is described.
Deev, Andrei   +4 more
core   +1 more source

From Wafers to Electrodes: Transferring Automatic Optical Inspection (AOI) for Multiscale Characterization of Smart Battery Manufacturing

open access: yesAdvanced Functional Materials, EarlyView.
Automat optical inspection (AOI) techniques in semiconductor fabrication can be leveraged in battery manufacturing, enabling scalable detection and analysis of electrode‐ and cell‐level imperfections through AI‐driven analytics and a digital‐twin framework.
Jianyu Li, Ertao Hu, Wei Wei, Feifei Shi
wiley   +1 more source

UWB Doublet Generation Employing Cross-Phase Modulation in a Semiconductor Optical Amplifier Mach–Zehnder Interferometer

open access: yesIEEE Photonics Journal, 2013
In this paper, a novel method to generate ultrawideband (UWB) doublets is proposed and experimentally demonstrated, which is based on exploiting the cross-phase modulation in a semiconductor optical amplifier (SOA). The key component is an integrated SOA
V. Moreno   +4 more
doaj   +1 more source

Ultrafast WDM logic [PDF]

open access: yes, 1997
Ultrafast all-optical logic gates that accept optical inputs in which wavelength designates bit position within the overall byte are proposed and demonstrated. Four-wave mixing is shown to provide a conditional test function that can be used to construct
Hunziker, Guido   +2 more
core   +1 more source

Optical computing with semiconductor optical amplifiers [PDF]

open access: yesOptical Engineering, 2012
Increasing communication traffic and plans to increase various services may cause a serious problem towards the power consumption of network equipment. One of the causes of large power consumption in the present network is the multiplexing scheme, such as wavelength division multiplexing (WDM) and electrical routing of the packet signals.
openaire   +1 more source

Temperature‐Modulated Threshold Response in a Volatile Memristor: Toward a Biomimetic Polymodal Nociceptive System

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates an artificial polymodal nociceptor whose firing threshold is actively modulated by temperature. A volatile TiN/TiOx/ZnO/TiOx/ITO memristor shows interfacial ion–driven resistive switching and membrane‐potential‐like dynamics, enabling temperature‐dependent nociceptive behavior.
Chanmin Hwang   +3 more
wiley   +1 more source

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