Results 31 to 40 of about 693,236 (350)
A one-dimensional tunable magnetic metamaterial [PDF]
, 2013 We present experimental data on a one-dimensional superconducting metamaterial that is tunable over a broad frequency band. The basic building block of this magnetic thin-film medium is a single-junction (rf-) superconducting quantum interference device (
Butz, S. +4 more
core +3 more sources
Optics Express, 2008 A new type of solid-state variable focal length lens is described. It is based on shape changes in an elastomeric membrane driven by compression of a reservoir of a polymer gel. A novel fabrication process based on individual lens components allows for customization of lens power based on the desired application. The lens shape as a function of applied
G, Beadie +9 more
openaire +2 more sources
Effects of atmospheric turbulence on fiber-coupled DPSK system in Satellite-to-Ground downlink
Results in Physics, 2018 Fiber-coupled differential phase-shift keying (DPSK) modulation is potentially an effective approach for further high-speed satellite lasercom, due to the high detection sensitivity, low linewidth requirements, and uncalled-for complex phase-locked loop ...
Qingbo Yang +6 more
doaj +1 more source
Application of DMLF in Pulse Ranging LiDAR System
Applied Sciences, 2021 A novel differential method based on linear fitting is proposed to improve the accuracy of the pulse-ranging system. In this method, the Peak Points (PPs) of the traditional echo signal transformed into the Positive-Going Zero-Crossing Points (PGZCPs) of
Dongbing Guo, Chunhui Wang, Baoling Qi
doaj +1 more source
Journal of Applied Physics, 2011 We present a generic microcavity platform for cavity experiments on optically active nanostructures, such as quantum dots, nanocrystals, color centers, and carbon nanotubes. The cavity is of the Fabry-Pérot type with a planar back mirror and a miniature concave top mirror with radius of curvature ∼ 100 μm.
Barbour, Russell J. +8 more
openaire +3 more sources
Quartz-Enhanced Photoacoustic Spectroscopy Sensor with a Small-Gap Quartz Tuning Fork
Sensors, 2018 A highly sensitive quartz-enhanced photoacoustic spectroscopy (QEPAS) sensor based on a custom quartz tuning fork (QTF) with a small-gap of 200 μm was demonstrated.
Yu-Fei Ma +4 more
doaj +1 more source
Highly Sensitive and Fast Hydrogen Detection Based on Light-Induced Thermoelastic Spectroscopy
Ultrafast Science, 2023 As a new energy source, hydrogen (H2) detection is a hot topic in recent years. Because of the weak absorption characteristic, laser spectroscopy-based H2 detection is challenging.
Yufei Ma +4 more
doaj +1 more source
A 6-to-18 GHz tunable concurrent dual-band receiver front end for scalable phased arrays in 130nm CMOS [PDF]
, 2008 This paper presents a study and design of tunable concurrent dual-band receiver. Different system architectures and building blocks have been compared and analyzed.
Babakhani, Aydin +3 more
core +1 more source
Tunable pH Sensitive Lipoplexes
, 2023 To provide long circulating nanoparticles able to carry a gene to tumor cells, we have designed anionic pegylated lipoplexes which are pH sensitive. The reduction of positive charges in nucleic acid carriers allows reducing the elimination rate, increasing circulation time in the blood, leading to improved tumor accumulation of lipid nanoparticles ...
Dhotel, H, Mignet, N, Bessodes, Michel
openaire +3 more sources
Photoacoustics, 2021 A gas sensing method based on quartz-enhanced photothermal spectroscopy (QEPTS) demodulated by quartz tuning fork (QTF) sensing acoustic wave is reported for the first time. Different from traditional QEPTS, the method proposed in this paper utilizes the
Ziting Lang +3 more
doaj +1 more source