scholarly journals Balanced photodetectors nonlinearity for theshort-pulse regime

2021 ◽  
Author(s):  
Philippe Guay ◽  
Jérôme Genest
Keyword(s):  
Pulse Regime

Multidecadal variability of the Tonle Sap Lake flood pulse regime

2021 ◽  
Author(s):  
Aifang Chen ◽  
Junguo Liu ◽  
Matti Kummu ◽  
Olli Varis ◽  
Qiuhong Tang ◽  
...  
Keyword(s):  
Flood Pulse ◽  
Pulse Regime ◽  
Multidecadal Variability ◽  
Tonle Sap Lake ◽  
Tonle Sap

scholarly journals Titanium surface modification using femtosecond laser with 1013–1015 W/cm2 intensity in vacuum

2012 ◽  
Vol 31 (1) ◽  
pp. 29-36 ◽  
Author(s):  
M. Trtica ◽  
D. Batani ◽  
R. Redaelli ◽  
J. Limpouch ◽  
V. Kmetik ◽  
...  
Keyword(s):  
Surface Modification ◽  
Femtosecond Laser ◽  
Titanium Surface ◽  
Femtosecond Lasers ◽  
Single Pulse ◽  
Surface Structures ◽  
Pulse Regime ◽  
Periodic Surface ◽  
Reduced Intensity ◽  
Surface Changes

AbstractThe response of titanium surface irradiated with high intensity (1013 – 1015 W/cm2) Ti:sapphire laser was studied in vacuum. Most of the reported investigations were conducted with nano- to femtosecond lasers in gas atmospheres while the studies of titanium surface interacting with femtosecond laser in vacuum are scarce. The laser employed in our experiment was operating at 800 nm wavelength and pulse duration of 60 fs in single pulse regime. The observed surface changes and phenomena are (1) creation of craters, (2) formation of periodic surface structures at the reduced intensity, and (3) occurrence of plasma in front the target. Since microstructuring of titanium is very interesting in many areas (industry, medicine), it can be concluded from this study that the reported laser intensities can effectively be applied for micromachining of the titanium surface (increasing the roughness, formation of parallel periodic surface structures etc.).

Effect of an external optical signal on a laser in the smooth-pulse regime

1975 ◽  
Vol 22 (2) ◽  
pp. 247-249
Author(s):  
V. G. Vasil'ev ◽  
L. S. Kornienko ◽  
N. V. Kravtsov ◽  
B. G. Skuibin
Keyword(s):  
Optical Signal ◽  
Pulse Regime

Activity, substrate selection, and effect of a simulated Amazon flood regime on the behaviour of the apple snail, Pomacea bridgesii

2015 ◽  
Vol 66 (9) ◽  
pp. 815 ◽  
Author(s):  
Timoteo Tadashi Watanabe ◽  
Gustavo Yomar Hattori ◽  
Bruno Sampaio Sant'Anna
Keyword(s):  
Daily Activity ◽  
Significant Proportion ◽  
Flood Pulse ◽  
Substrate Selection ◽  
Apple Snail ◽  
Pulse Regime ◽  
Amazon Floodplain ◽  
Flood Regime ◽  
Maximum Water Level ◽  
Water Tanks

This study investigated the behaviour of Pomacea bridgesii, describing the daily activity, substrate selection and the influence of the flood regime in the Amazon, the species’ native habitat. The present study described the daily activity and substrate selection, and evaluated the activity adaptations of the gastropods in a simulated flood-pulse regime. Gastropods were collected in Amazonas, Brazil, in June 2013. Assessments of the daily behaviour, substrate selection, and flood-pulse simulation were made in experimental water tanks. The snails were observed hourly for 48h, and their behaviour recorded on an ethogram. The snails were more active during the night, when up to 80% of them moved about. In general, during both day and night, the gastropods used the pebble substrate most often. Comparing the day periods, a significant proportion of the individuals that were using the pebbles moved to other substrates (t=5; d.f.=2; P=0.03). The interaction of the behaviour of P. bridgesii with the simulated flood-pulse regime showed a statistical difference between the dry period and the period of maximum water level. The water regime of the Amazon floodplain directly influenced the activity of P. bridgesii, with responses including self-burying and activity interruption, with the operculum closed to minimise water loss.

scholarly journals eXtreme Chirped Pulse Oscillator Operating in the Nanosecond Stretched Pulse Regime

2008 ◽  
Vol 16 (7) ◽  
pp. 4766 ◽  
Author(s):  
Shinwook Lee ◽  
Dimitrios Mandridis ◽  
Peter J. Delfyett
Keyword(s):  
Pulse Regime ◽  
Chirped Pulse ◽  
Pulse Oscillator

Approaching the Few-Cycle Pulse Regime with Thin-Disk Oscillators

2013 ◽  
Author(s):  
Marcus Seidel ◽  
Oleg Pronin ◽  
Jonathan Brons ◽  
Elena Fedulova ◽  
Fabian Lücking ◽  
...  
Keyword(s):  
Thin Disk ◽  
Pulse Regime ◽  
Cycle Pulse
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