Results 31 to 40 of about 984 (150)

A miniaturized Microwave Bandpass Filter Based on Modified (Mg0.95Ca0.05)TiO3 Substrate

open access: yesMATEC Web of Conferences, 2016
A microwave miniaturized bandpass filter using (Mg0.95Ca0.05)TiO3 (abbreviated as 95MCT hereafter) ceramic substrate is investigated in the present paper.
Hu Mingzhe   +4 more
doaj   +1 more source

Highly Versatile Real‐Time Optical Noise Filtering Through Temporal Cloaking

open access: yesLaser &Photonics Reviews, Volume 20, Issue 10, 22 May 2026.
Conventional bandpass filtering strategies may be insufficient for recovering optical waveforms under extremely noisy conditions. We demonstrate a temporal‐cloaking denoising strategy enabled by the temporal Talbot effect, which concentrates the coherent signal of interest into short temporal slots while broadband noise remains temporally spread.
Majid Goodarzi   +5 more
wiley   +1 more source

Compact Quad-Band Bandpass Filter Using Double-Diplexing Structure

open access: yes, 2017
This paper presents a compact quad-band bandpass filter (QB-BPF) using double-diplexing structure, which consists of two channel filters and a pair of modified manifold-coupled lines.
Yan Zhu, Yong-Qian Du, Jin Xu
core   +1 more source

Single‐Molecule Forster Resonance Energy Transfer With a Minimalistic 3D‐Printed Setup and Dyes in the Blue‐Green Spectral Region

open access: yesChemPhysChem, Volume 27, Issue 8, 28 April 2026.
Single‐molecule FRET enables nanometer‐scale insights into biomolecular structure and dynamics but often requires complex instrumentation. We present the FRET‐Brick, a minimalistic, 3D‐printed microspectroscopy platform using 488 nm continuous‐wave excitation and PMT detection.
Gabriel G. Moya Muñoz   +6 more
wiley   +1 more source

Liquid metal frequency‐reconfigurable SIW bandpass filter based on gravity field

open access: yesElectronics Letters, 2021
In this letter, a novel frequency‐reconfigurable substrate integrated waveguide (SIW) bandpass filter (BPF) based on gravity field is proposed. By inverting the proposed filter, the liquid metal would flow into or out of the non‐metallic via‐holes under ...
Yuchao Mei   +4 more
doaj   +1 more source

High‐Performance All‐Optical Modulator Based on Graphene‐Loaded Ultrathin Silicon Slot Waveguides

open access: yesAdvanced Photonics Research, Volume 7, Issue 4, April 2026.
A novel scheme composed of graphene‐loaded ultrathin silicon slot waveguide is demonstrated realizing high‐performance all‐optical modulation on silicon photonic platform. Owing to the enhanced light–matter interaction and suppression of two‐photon absorption, the device shows a measured modulation depth over 3dB, a modulation efficiency of 0.086 dB/μm
Zhiang Zhou   +9 more
wiley   +1 more source

Miniaturized Multiband Bandpass Filters Based on a Single Multimode Resonator Loading Branches

open access: yesDiscrete Dynamics in Nature and Society, 2022
In this paper, the operating mechanism of proposed bandpass filters with a single multimode resonator loaded with branches is introduced. Based on the design procedure, the center frequencies of the proposed bandpass filters can be controlled due to the ...
Jie Luo, Kaibo Shi, Shanshan Gao
doaj   +1 more source

Compact Millimeter-Wave On-Chip Dual-Band Bandpass Filter in 0.15-μm GaAs Technology

open access: yesIEEE Journal of the Electron Devices Society, 2022
A compact on-chip dual-band bandpass filter (BPF) at millimeter-wave frequencies is proposed in 0.15- ${\mu }\text{m}$ GaAs technology. To understand the working mechanism of the BPF, an LC equivalent circuit model is presented and analyzed for position
Kai-Da Xu   +7 more
doaj   +1 more source

Mechanisms of Laser Ablation in Liquids and Their Impact on the Efficiency of Nanoparticle Generation

open access: yesLaser &Photonics Reviews, Volume 20, Issue 8, 17 April 2026.
Laser ablation in liquid enables nanoparticle synthesis from diverse materials but remains less energy‐efficient than ablation in air. This study quantifies the absorption‐corrected ablation efficiency and experimentally confirms redeposition as the key loss mechanism using pump‐probe microscopy.
Maximilian Spellauge   +9 more
wiley   +1 more source

Laser Stabilized to a Fiber Interferometer With Close‐To‐Zero Temperature Sensitivity

open access: yesLaser &Photonics Reviews, Volume 20, Issue 8, 17 April 2026.
A laser stabilized to a hollow‐core fibre interferometer is presented. The interferometer is designed to have near‐zero temperature phase‐sensitivity. Laser stabilized to this interferometer put in a non‐vacuum environment achieves ±550 kHz frequency variation over 100 h and an Allan deviation of 2 × 10−14τ, which is comparable to miniature ULE ...
Bo Shi   +7 more
wiley   +1 more source

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