Observation of Ionization of Gases by a Ruby Laser

Damon, E.; Tomlinson, R.G.

doi:10.1364/ao.2.000546

Cited by 92 publications

(25 citation statements)

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“…Laser induced gas breakdown was first observed by Damon et al 93 in 1963. Laser energy deposition control flows either through the interaction of generated blast waves with the flow or through its heating effects on other flow characteristics.…”

Section: Laser Generated Plasmamentioning

confidence: 96%

Joule heating flow control methods for high-speed flows

Russell

Zare‐Behtash

Kontis

2016

Journal of Electrostatics

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Section: Laser Generated Plasmamentioning

confidence: 96%

Joule heating flow control methods for high-speed flows

Russell

Zare‐Behtash

Kontis

2016

Journal of Electrostatics

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“…Laser-induced 30 gas breakdown was first observed in 1963 [1][2][3]. Thereafter, the laser-induced gas breakdown was 31 believed to be applicable to a wide range of engineering applications such as flow control [4][5][6] and 32 laser plasma igniters [7,8] to name a few.…”

Section: Numerical and Experimental Investigations Have Demonstrated mentioning

confidence: 99%

Suspended liquid particle disturbance on laser-induced blast wave and low density distribution

2017

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Abstract:9The impurity effect of suspended liquid particles on laser-induced gas breakdown was 10 experimentally investigated in quiescent gas. The focus of this study is the investigation of the 11 influence of the impurities on the shock wave structure as well as the low density distribution. A 532 12 nm Nd: YAG laser beam with 188 mJ/pulse was focused in the chamber filled with suspended liquid 13 particles 0.9 ± 0.63 μm in diameter. Several shock waves are generated by multiple gas breakdowns 14 along the beam path in the breakdown with particles. Four types of shock wave structures can be 15 observed: 1) the dual blast waves with similar shock radius, 2) the dual blast waves with large shock 16 radius at the lower breakdown, 3) the dual blast waves with large shock radius at the upper breakdown, 17 4) the triple blast waves. The independent blast waves interact with each other and enhance the shock 18 strength behind the shock front in the lateral direction. The triple blast waves lead to the strongest 19 shock wave in all cases. The shock wave front that propagates towards the opposite laser focal spot 20 impinges on one another, and thereafter a transmitted shock wave (TSW) appears. The TSW interacts 21 with the low density core called a kernel, the kernel then longitudinally expands quickly due to a 22Richtmyer-Meshkov like instability. Laser-particle interaction causes an increase in the kernel volume 23which is approximately five times as large as that in gas breakdown without particles. In addition, 24 laser-particles interaction can improve the laser energy efficiency. 25Keywords: Laser-induced gas breakdown; Suspended liquid particles; Impurity effect; Hot 26 plume 27 2

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“…Pulsed laser discharge in a gas was discovered by Damon and Tomlinson [7] and Minck [8]. A detailed discussion is presented in [9] and summarized in Fig.…”

Section: Laser and Microwave Discharge In Airmentioning

confidence: 99%

A summary of laser and microwave flow control in high-speed flows

Knight

2013

Progress in Flight Physics

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Laser and microwave discharge in air has emerged as an e¨ective method for §ow control in high-speed §ows. Computational and experimental research has demonstrated its capability for signi¦cant drag reduction and mitigation of adverse interactions in high-speed §ows. The paper presents a summary of key computational and experimental studies performed at Rutgers University in collaboration with the Joint Institute for High Temperatures (Moscow, Russia) and St. Petersburg State University (St. Petersburg, Russia).

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Observation of Ionization of Gases by a Ruby Laser

Cited by 92 publications

References 0 publications

Joule heating flow control methods for high-speed flows

Joule heating flow control methods for high-speed flows

Suspended liquid particle disturbance on laser-induced blast wave and low density distribution

A summary of laser and microwave flow control in high-speed flows

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