scholarly journals Experimental research of small-scale self-focusing of ultrashort pulse with spatial modulation

2008 ◽  
Vol 57 (4) ◽  
pp. 2253
Author(s):  
Feng Ze-Hu ◽  
Fu Xi-Quan ◽  
Zhang Li-Fu ◽  
Xu Hui-Wen ◽  
Wen Shuang-Chun
Keyword(s):  
Experimental Research ◽  
Ultrashort Pulse ◽  
Spatial Modulation ◽  
Small Scale ◽  
Self Focusing

Experimental research of pulsed chirp effect on the small-scale self-focusing

2008 ◽  
Vol 51 (11) ◽  
pp. 1653-1660 ◽  
Author(s):  
LiFu Zhang ◽  
XiQuan Fu ◽  
ZeHu Feng ◽  
Hua Yang ◽  
ShuangChun Wen
Keyword(s):  
Experimental Research ◽  
Small Scale ◽  
Self Focusing

Suppression of small-scale self-focusing in diverging beams

1988 ◽  
Vol 18 (1) ◽  
pp. 104-106
Author(s):  
Mikhail V Pyatakhin ◽  
A F Suchkov
Keyword(s):  
Small Scale ◽  
Self Focusing

Small-scale self-focusing of 200 ps laser pulses in Brillouin amplification

2015 ◽  
Vol 24 (9) ◽  
pp. 094210 ◽  
Author(s):  
Hang Yuan ◽  
Yu-Lei Wang ◽  
Zhi-Wei Lü ◽  
Zhen-Xing Zheng
Keyword(s):  
Laser Pulses ◽  
Small Scale ◽  
Self Focusing

Thermal delousing in anaesthetised small Atlantic salmon (Salmo salar) post-smolts: A case study showing the viability of anaesthesia prior to delousing for improved welfare during treatment for salmon lice

2021 ◽  
Vol 30 (2) ◽  
pp. 117-120
Author(s):  
O Folkedal ◽  
SO Utskot ◽  
J Nilsson
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Experimental Research ◽  
Acute Stress ◽  
Small Scale ◽  
Lepeophtheirus Salmonis ◽  
Salmon Lice ◽  
Sequence Of Events ◽  
Present Case Study

Delousing treatment for salmon sea lice (Lepeophtheirus salmonis) is considered a significant welfare concern in farming of Atlantic salmon ( Salmo salar), where both industry and legislative bodies prompt for better methods. Currently, the most common method is thermal delousing, where fish are crowded, pumped into a vessel and exposed to ∼28–34°C for ∼30 s. Physical collisions occurring as a result of a loss of behavioural control lead to acute stress. Crowding triggers vigorous escape behaviour as salmon respond not only to treatment but also to being channeled to and from the treatment zone. A sequence of events considered to cause mortality and poor welfare. The present case study was motivated by an urgent need for delousing in groups of small salmon post-smolts in experimental research. For this purpose, a simple, small-scale system for thermal delousing was constructed, including anaesthesia to alleviate behavioural responses. The anaesthetised fish showed little behavioural response to thermal treatment, strong appetite within hours, and negligible mortality. The described method is regarded as a welfare-friendly alternative to industrial delousing in smaller fish groups, for example, in experimental research. We would encourage detailed research aimed towards gaining a deeper under-standing of the welfare effects of anaesthesia prior to treatment for delousing.

Small-Scale Self-Focusing of Divergent Beams in Gain Medium

2009 ◽  
Vol 29 (3) ◽  
pp. 786-793 ◽  
Author(s):  
张艳丽 Zhang Yanli ◽  
李小燕 Li Xiaoyan ◽  
朱健强 Zhu Jianqiang
Keyword(s):  
Gain Medium ◽  
Small Scale ◽  
Self Focusing

Temporal Evolution of Laser Pulses with Small-Scale Self-Focusing in Different Spatial Positions

2011 ◽  
Vol 38 (3) ◽  
pp. 0302015
Author(s):  
侯彦超 Hou Yanchao ◽  
傅喜泉 Fu Xiquan ◽  
刘辉 Liu Hui
Keyword(s):  
Temporal Evolution ◽  
Laser Pulses ◽  
Small Scale ◽  
Self Focusing

Influence of Small-Scale Self-Focusing of Pump Laser on Radial Smoothing Effect Based on Dynamic Wavefront Control

2019 ◽  
Vol 46 (3) ◽  
pp. 0305001
Author(s):  
李建龙 Li Jianlong ◽  
翁小凤 Weng Xiaofeng ◽  
钟哲强 Zhong Zheqiang ◽  
张彬 Zhang Bin
Keyword(s):  
Pump Laser ◽  
Small Scale ◽  
Smoothing Effect ◽  
Wavefront Control ◽  
Self Focusing

Small scale self-focusing effect of stacked chirped pulse propagation

2011 ◽  
Vol 23 (1) ◽  
pp. 45-48
Author(s):  
张颖 Zhang Ying ◽  
朱启华 Zhu Qihua ◽  
曾小明 Zeng Xiaoming ◽  
周凯南 Zhou Kainan ◽  
蒋东镔 Jiang Dongbin ◽  
...  
Keyword(s):  
Pulse Propagation ◽  
Small Scale ◽  
Chirped Pulse ◽  
Focusing Effect ◽  
Self Focusing
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