Passively Q-switched Tm:YLF laser generating 15 mJ, 500 kW peak power pulses

2021 ◽  
Author(s):  
Lew Goldberg ◽  
Vernon King ◽  
Brian J. Cole ◽  
Alan D. Hays
Keyword(s):  
Peak Power ◽  
Tm:Ylf Laser

Efficient, high peak power, Q-switched, tunable diode pumped Tm:YLF laser

2008 ◽  
Author(s):  
Jan K. Jabczyński ◽  
Lukasz Gorajek ◽  
Waldemar Zendzian ◽  
Jacek Kwiatkowski ◽  
Helena Jelinkova ◽  
...  
Keyword(s):  
Peak Power ◽  
High Peak ◽  
High Peak Power ◽  
Diode Pumped ◽  
Tm:Ylf Laser

The investigations of tunable, high peak power, diode pumped Tm:YLF laser

2008 ◽  
Author(s):  
Jan K. Jabczyński ◽  
Lukasz Gorajek ◽  
Waldemar Zendzian ◽  
Jacek Kwiatkowski ◽  
Helena Jelinkova ◽  
...  
Keyword(s):  
Peak Power ◽  
High Peak ◽  
High Peak Power ◽  
Diode Pumped ◽  
Power Diode ◽  
Tm:Ylf Laser

High repetition rate, high peak power, diode pumped Tm:YLF laser

2009 ◽  
Vol 6 (2) ◽  
pp. 109-112 ◽  
Author(s):  
J.K. Jabczynski ◽  
Ł. Gorajek ◽  
W. Zendzian ◽  
J. Kwiatkowski ◽  
H. Jelínková ◽  
...  
Keyword(s):  
Repetition Rate ◽  
Peak Power ◽  
High Repetition Rate ◽  
High Peak ◽  
High Peak Power ◽  
High Repetition ◽  
Diode Pumped ◽  
Power Diode ◽  
Tm:Ylf Laser

Maximum Peak Power Tracking-Based Control Algorithms with Stall Regulation for Optimal Wind Energy Capture

2008 ◽  
Vol 128 (4) ◽  
pp. 411-417 ◽  
Author(s):  
Bunlung Neammanee ◽  
Korawit Krajangpan ◽  
Somporn Sirisumrannukul ◽  
Somchai Chatratana
Keyword(s):  
Wind Energy ◽  
Peak Power ◽  
Control Algorithms ◽  
Energy Capture ◽  
Maximum Peak

Aluminum Suppresses Effect of Nicotine on Gamma Oscillations (20-40 Hz) in Mouse Hippocampal Slices

2018 ◽  
Vol 17 (6) ◽  
pp. 404-411 ◽  
Author(s):  
Syeda Mehpara Farhat ◽  
Touqeer Ahmed
Keyword(s):  
Nicotinic Acetylcholine Receptors ◽  
Cholinergic System ◽  
Acetylcholine Receptors ◽  
Peak Power ◽  
Hippocampal Slices ◽  
Field Potential ◽  
Gamma Oscillations ◽  
Gamma Oscillation ◽  
Facilitatory Effect

Background: Aluminum (Al) causes neurodegeneration and its toxic effects on cholinergic system in the brain is well documented. However, it is unknown whether and how Al changes oscillation patterns, driven by the cholinergic system, in the hippocampus. Objective: We studied acute effects of Al on nicotinic acetylcholine receptors (nAChRs)-mediated modulation of persistent gamma oscillations in the hippocampus. Method: The field potential recording was done in CA3 area of acute hippocampal slices. Results: Carbachol-induced gamma oscillation peak power increased (1.32±0.09mV2/Hz, P<0.01) in control conditions (without Al) by application of 10µM nicotine as compared to baseline value normalized to 1. This nicotine-induced facilitation of gamma oscillation peak power was found to depend on non-α7 nAChRs. In slices with Al pre-incubation for three to four hours, gamma oscillation peak power was reduced (5.4±1.8mV2/Hz, P<0.05) and facilitatory effect of nicotine on gamma oscillation peak power was blocked as compared to the control (18.06±2.1mV2/Hz) or one hour Al pre-incubated slices (11.3±2.5mV2/Hz). Intriguingly wash-out, after three to four hours of Al incubation, failed to restore baseline oscillation power and its facilitation by nicotine as no difference was observed in gamma oscillation peak power between Al wash-out slices (3.4±1.1mV2/Hz) and slices without washout (3.6±0.9mV2/Hz). Conclusion: This study shows that at cellular level, exposure of hippocampal tissue to Al compromised nAChR-mediated facilitation of cholinergic hippocampal gamma oscillations. Longer in vitro Al exposure caused permanent changes in hippocampal oscillogenic circuitry and changed its sensitivity to nAChR-modulation. This study will help to understand the possible mechanism of cognitive decline induced by Al.

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