Results 31 to 40 of about 23,841 (308)

Characterization of a novel three-section tunable slotted fabry-perot laser [PDF]

, 2010
A novel three-section tunable slotted-Fabry-Perot laser has been examined. Characterizations of the linewidth, SMSR and RIN indicate that this type of laser may be a suitable source for dynamic networks employing advanced optical modulation ...
Smyth, Frank, J.H. Song, O'Brien, P., K. Shi, Roycroft, Brendan, Corbett, Brian, Song, J.H., F. Smyth, B. Roycroft, Reid, Douglas A., Barry, Liam P., P. O’Brien, D. Reid, B. Corbett, F. H. Peters, O\u27Brien, P., Shi, Kai, Peters, F.H., L. P. Barry   +18 more
core   +1 more source

Discrete mode laser diodes with very narrow linewidth emission [PDF]

, 2007
Ex-facet, free-running low linewidth (~100 kHz), single mode laser emission is demonstrated using low cost, regrowth-free ridge waveguide Discrete Mode Fabry Pérot laser diode chips.
Kelly, Brian, Rensing, Marc, Wendelboe, J., O'Gorman, J., Phelan, Richard, O\u27Carroll, John, Perry, Philip, Jones, D., Watts, C.B., Guignard, Celine, Barry, Liam P., Herbert, C., O\u27Gorman, J., O'Carroll, John, Kaszubowska-Anandarajah, Aleksandra, O'Gorman, James   +15 more
core   +1 more source

A computer-controlled nanosecond laser system

Computers & Chemistry, 1998
Abstract A fully-automated, computer-controlled laser flash photolysis system is described. It uses a fast digital storage oscilloscope (DSO) with a sufficient number of time points that multiple time scales can be generated by the computer from a single kinetic trace originating from the DSO. The experimental controls are designed so the computer is
Michael D. Thomas, Gordon L. Hug
openaire   +1 more source

Single shot laser writing with sub-nanosecond and nanosecond bursts of femtosecond pulses [PDF]

Scientific Reports, 2017
AbstractA method is proposed for efficient laser modification of fused silica and sapphire by means of a burst of femtosecond pulses having time separation in the range 10–3000 ps. Modification enhancement with the pulse separation increase in the burst was observed on the tens picoseconds scale. It is proposed that accumulated transient tensile strain
Andrey Okhrimchuk, Sergey Fedotov, Ivan Glebov, Vladimir Sigaev, Peter Kazansky   +4 more
openaire   +3 more sources

Nanosecond-Laser-Based Charge Transfer Plasmon Engineering of Solution-Assembled Nanodimers [PDF]

, 2018
The ability to re-engineer self-assembled functional structures with nanometer accuracy through solution-processing techniques represents a big challenge in nanotechnology.
Lei Song, Yanjuan Li, Ming Gong (383231), Yue Li (102191), Ming Gong, Yue Li, Lingling Fang, Lei Song (30203), Yueliang Wang (5828012), Dilong Liu, Yanjuan Li (5828015), Zhaoxiang Deng (1474549), Lingling Fang (1614925), Dilong Liu (5828009), Yueliang Wang, Zhaoxiang Deng   +15 more
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Improving fluid retention properties of 316L stainless steel using nanosecond pulsed laser surface texturing [PDF]

, 2020
Click on the DOI link to access this article (may not be free.)stainless steel has been used as a successful biomaterial for decades. In this study, a pulsed nanosecond laser was used to create patterned surfaces of stainless steel coupons to study the ...
Mahmood Al Bashir, Anil Mahapatro, Nair, Rajeev, Sanchez, Martina M., Rajeev Nair, Al Bashir, Mahmood, Martina M. Sanchez, Mahapatro, Anil   +7 more
core   +1 more source

Review: Research progress on nanosecond laser irradiation damage of optical films

Nuclear Analysis, 2022
Nanosecond laser irradiation damage of optical films is one of the main factors to limit the output power when the high power solid laser system is used to drive inertial confinement nuclear fusion.
Yuling Wu, Xia Xiang, Jingxia Yu, Xiaodong Yuan, Huahai Shen, Wanguo Zheng, Xiaotao Zu   +6 more
doaj   +1 more source

Multi-kilowatt single-mode ytterbium-doped large-core fiber laser [PDF]

, 2009
We have demonstrated a highly efficient cladding-pumped ytterbium-doped fiber laser, generating >2.1 kW of continuous-wave output power at 1.1 µm with 74% slope efficiency with respect to launched pump power.
Chung, Seung-Hwan, Nilsson, Johan, Boyland, Alexander J., Sahu, Jayanta K., Payne, David N., Jeong, Yoonchan   +5 more
core   +1 more source

Study of Tensile Strength of Aluminum Alloy Caused by Pulsed Laser Drilling

Metals, 2022
In the process of pulsed laser drilling, the material properties in the heat-affected zone will change due to the thermal effect of the laser. To study the effect of this change on the material tensile strength, two lasers were used to punch the standard
Heyan Gao, Ying Wang, Jifei Ye, Lan Li, Bangdeng Du, Sai Li, Mingyu Li   +6 more
doaj   +1 more source

Nanosecond colloidal quantum dot lasers for sensing [PDF]

Optics Express, 2014
Low-threshold, gain switched colloidal quantum dot (CQD) distributed-feedback lasers operating in the nanosecond regime are reported and proposed for sensing applications for the first time to the authors' knowledge. The lasers are based on a mechanically-flexible polymeric, second order grating structure overcoated with a thin-film of CQD/PMMA ...
Guilhabert, B., Foucher, C., Haughey, A-M., Mutlugun, E., Gao, Y., Herrnsdorf, J., Sun, H.D., Demir, H.V., Dawson, M.D., Laurand, N.   +9 more
openaire   +7 more sources