Results 21 to 30 of about 553,597 (280)

High Compact, High Quality Single Longitudinal Mode Hundred Picoseconds Laser Based on Stimulated Brillouin Scattering Pulse Compression

open access: yesApplied Sciences, 2016
A high beam quality hundred picoseconds single-longitudinal-mode (SLM) laser is demonstrated based on stimulated Brillouin scattering (SBS) pulse compression and aberration compensation.
Zhenxu Bai   +10 more
doaj   +1 more source

Tunable superconducting nanoinductors [PDF]

open access: yesNanotechnology, 2010
We characterize inductors fabricated from ultra-thin, approximately 100 nm wide strips of niobium (Nb) and niobium nitride (NbN). These nanowires have a large kinetic inductance in the superconducting state. The kinetic inductance scales linearly with the nanowire length, with a typical value of 1 nH/um for NbN and 44 pH/um for Nb at a temperature of 2.
Annunziata A J   +6 more
openaire   +5 more sources

A passively Q-switched Ho:YVO4 Laser at 2.05 μm with Graphene Saturable Absorber

open access: yesApplied Sciences, 2016
We report a passively Q-switched Ho:YVO4 laser pumped at 1.94 µm with multilayer graphene as a saturable absorber. At the absorbed pump power of 9.3 W, the maximum average output power of 2.2 W was obtained in Ho:YVO4 laser with minimum pulse width of ...
Wenmiao Lin   +5 more
doaj   +1 more source

Application of DMLF in Pulse Ranging LiDAR System

open access: yesApplied 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

A Tunable Photosensor

open access: yesJournal of the American Chemical Society, 2008
A pyrene-modified beta-cyclodextrin (pyrenecyclodextrin)-decorated single-walled carbon nanotube (SWNT) field-effect transistor (FET) device was fabricated, which can serve as a tunable photosensor to sense a fluorescent adamantyl-modified Ru complex (ADA-Ru).
Zhao, Yanli   +3 more
openaire   +4 more sources

Discrete, tunable color-entanglement [PDF]

open access: yesCLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference, 2009
Although frequency multiplexing of information has revolutionized the field of classical communications, the color degree of freedom (DOF) has been used relatively little for quantum applications. We experimentally demonstrate a new hybrid quantum gate that transfers polarization entanglement of non-degenerate photons onto the color DOF. We create, for
Ramelow, S.   +4 more
openaire   +6 more sources

Writing Electronic Devices on Paper with Carbon Nanotube Ink [PDF]

open access: yes, 2009
The normal paper used in any printer is among the cheapest flexible organic materials that exist. We demonstrate that we can print on paper high-frequency circuits tunable with an applied dc voltage.
D Dragoman   +5 more
core   +4 more sources

Highly Sensitive and Fast Hydrogen Detection Based on Light-Induced Thermoelastic Spectroscopy

open access: yesUltrafast 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

Ultra-Highly Sensitive Hydrogen Chloride Detection Based on Quartz-Enhanced Photothermal Spectroscopy

open access: yesSensors, 2021
Combining the merits of non-contact measurement and high sensitivity, the quartz-enhanced photothermal spectroscopy (QEPTS) technique is suitable for measuring acid gases such as hydrogen chloride (HCl).
Yufei Ma   +4 more
doaj   +1 more source

Tunable polymer lens

open access: yesOptics 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

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