Results 31 to 40 of about 687,426 (197)

Probing background ionization: Positive streamers with varying pulse repetition rate and with a radioactive admixture [PDF]

open access: yes, 2011
Positive streamers need a source of free electrons ahead of them to propagate. A streamer can supply these electrons by itself through photo-ionization, or the electrons can be present due to external background ionization.
Aleksandrov N L   +34 more
core   +3 more sources

Optical Fiber Pumped High Repetition Rate and High Power Nd:YVO4 Picosecond Regenerative Amplifier

open access: yesApplied Sciences, 2015
We report a stable optical fiber pumped Nd:YVO4 all solid state regenerative amplifier with all fiber picosecond laser as seed source. 888 nm Yb optical fiber lasers was chosen as pump source to reduce quantum defect for improved thermal performance.
Zhen-Ao Bai   +5 more
doaj   +1 more source

High Stability Industrial-Grade Nd: YVO4 Picosecond Laser Amplifier With High Average Output Power

open access: yesFrontiers in Physics, 2022
We demonstrate a high-power Nd: YVO4 picosecond laser amplifier that is capable of generating 51.5 W of average output power at a wavelength of 1,064 nm, with a repetition rate of 70 MHz and a pulse duration of 8.5 ps.
Zhenao Bai   +5 more
doaj   +1 more source

Time interleaved optical sampling for ultra-high speed A/D conversion [PDF]

open access: yes, 1998
A scheme is proposed for increasing the sampling rate of analogue-to-digital conversion by more than an order of magnitude by combining state-of-the-art A/D converters with photonic technology.
Koumans, R. G. M. P., Yariv, A.
core   +1 more source

Frequency‐swept high‐repetition rate optical source [PDF]

open access: yesMicrowave and Optical Technology Letters, 2020
AbstractWe propose and numerically validate an all‐optical scheme to generate optical pulse trains with varying temporal pulse‐to‐pulse delay and pulse duration. Our simulations confirm that applying a temporal sinusoidal phase modulation followed by a shaping of the spectral phase is efficient to maintain high‐quality Gaussian temporal profiles.
openaire   +3 more sources

TOF Analysis of Ions Accelerated at High Repetition Rate from Laser-Induced Plasma

open access: yesApplied Sciences, 2022
The generation, detection, and quantification of high-energy proton spectra that are produced from laser-target interaction methodologies is a field of increasingly growing popularity over the last 20 years.
Evan Russell   +7 more
doaj   +1 more source

Variable frequency picosecond optical pulse generation from laser diodes by electrical feedback [PDF]

open access: yes, 1985
High repetition rate picosecond optical pulse generation is achieved by providing electrical feedback (with and without external gain) to a self-pulsating laser diode. The feedback improves pulsation short-term stability (
Izadpanah, S. H.   +4 more
core   +1 more source

A difference detection system for high precision measurements of ultrafast transmission changes [PDF]

open access: yes, 1985
Ultrafast transmission changes can be recorded with high precision by means of a difference detection system. Using single pulses of low energy (0.1 nJ) and low repetition rate, variations of the transmitted energy induced by an excitation pulse are ...
H J Polland, Polland H J, W Zinth
core   +1 more source

High-Repetition-Rate Burst Pulser [PDF]

open access: yesReview of Scientific Instruments, 1967
This paper describes a simple and reliable thyratron circuit capable of generating high energy pulses at repetition rates of 5000/sec or higher. Design considerations and factors limiting the maximum repetition rate are discussed.
openaire   +1 more source

Charge-Line Dual-FET High-Repetition-Rate Pulsed Laser Driver

open access: yesApplied Sciences, 2019
Most modern pulsed laser systems require versatile laser diode drivers. A state-of-the-art pulsed laser driver should provide precise peak power regulation, high repetition rate, and pulse duration control.
Mateusz Żbik, Piotr Zbigniew Wieczorek
doaj   +1 more source

Home - About - Disclaimer - Privacy