Studies of short wavelength chemical lasers: Enhanced emission of Pb atoms following detonation of lead azide via a supersonic nozzle

I. Bar; T. Ben-Porat; A. Cohen; D. Heflinger; G. Miron; Y. Tzuk; S. Rosenwaks

Studies of short wavelength chemical lasers: Enhanced emission of Pb atoms following detonation of lead azide via a supersonic nozzle

I. Bar, T. Ben-Porat, A. Cohen, D. Heflinger, G. Miron, Y. Tzuk, S. Rosenwaks

Department of Physics

Research output: Contribution to journal › Conference article › peer-review

5 Scopus citations

Abstract

Previous studies in our laboratory have shown that preferential excitation of high lying electronic states of the lead atom is obtained following the detonation of lead azide. However, measurements have shown that the detonation products form an optically opaque medium. In order to overcome this problem, the detonation was conducted via a supersonic nozzle. As a result a transparent medium was formed near the nozzle exit plane. Strong emission from lead atoms was achieved in this medium. Time- and wavelength resolved measurements have shown that the emission intensity of the ³P₁^{o → 1} D₂ transition of the lead atom is significantly enhanced as compared to that from ³P₁^o to lower lying states. The behavior of the emission is explained in terms of kinetic and spectroscopic (self-trapping) mechanisms. The implication of our results to obtaining laser oscillation following detonation via supersonic nozzles is discussed.

Original language	English
Pages (from-to)	169-172
Number of pages	4
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	1397
Issue number	pt 1
State	Published - 1 Jan 1991
Event	8th International Symposium on Gas Flow and Chemical Lasers Part 1 (of 2) - Madrid, Spain Duration: 10 Sep 1990 → 14 Sep 1990

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Cite this

@article{99f2864a925e40bf854088a6a0ceecf6,

title = "Studies of short wavelength chemical lasers: Enhanced emission of Pb atoms following detonation of lead azide via a supersonic nozzle",

abstract = "Previous studies in our laboratory have shown that preferential excitation of high lying electronic states of the lead atom is obtained following the detonation of lead azide. However, measurements have shown that the detonation products form an optically opaque medium. In order to overcome this problem, the detonation was conducted via a supersonic nozzle. As a result a transparent medium was formed near the nozzle exit plane. Strong emission from lead atoms was achieved in this medium. Time- and wavelength resolved measurements have shown that the emission intensity of the 3P1o → 1 D2 transition of the lead atom is significantly enhanced as compared to that from 3P1o to lower lying states. The behavior of the emission is explained in terms of kinetic and spectroscopic (self-trapping) mechanisms. The implication of our results to obtaining laser oscillation following detonation via supersonic nozzles is discussed.",

author = "I. Bar and T. Ben-Porat and A. Cohen and D. Heflinger and G. Miron and Y. Tzuk and S. Rosenwaks",

year = "1991",

month = jan,

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language = "English",

volume = "1397",

pages = "169--172",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

issn = "0277-786X",

publisher = "SPIE",

number = "pt 1",

note = "8th International Symposium on Gas Flow and Chemical Lasers Part 1 (of 2) ; Conference date: 10-09-1990 Through 14-09-1990",

}

Studies of short wavelength chemical lasers: Enhanced emission of Pb atoms following detonation of lead azide via a supersonic nozzle. / Bar, I.; Ben-Porat, T.; Cohen, A. et al.
In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 1397, No. pt 1, 01.01.1991, p. 169-172.

Research output: Contribution to journal › Conference article › peer-review

TY - JOUR

T1 - Studies of short wavelength chemical lasers

T2 - 8th International Symposium on Gas Flow and Chemical Lasers Part 1 (of 2)

AU - Bar, I.

AU - Ben-Porat, T.

AU - Cohen, A.

AU - Heflinger, D.

AU - Miron, G.

AU - Tzuk, Y.

AU - Rosenwaks, S.

PY - 1991/1/1

Y1 - 1991/1/1

N2 - Previous studies in our laboratory have shown that preferential excitation of high lying electronic states of the lead atom is obtained following the detonation of lead azide. However, measurements have shown that the detonation products form an optically opaque medium. In order to overcome this problem, the detonation was conducted via a supersonic nozzle. As a result a transparent medium was formed near the nozzle exit plane. Strong emission from lead atoms was achieved in this medium. Time- and wavelength resolved measurements have shown that the emission intensity of the 3P1o → 1 D2 transition of the lead atom is significantly enhanced as compared to that from 3P1o to lower lying states. The behavior of the emission is explained in terms of kinetic and spectroscopic (self-trapping) mechanisms. The implication of our results to obtaining laser oscillation following detonation via supersonic nozzles is discussed.

AB - Previous studies in our laboratory have shown that preferential excitation of high lying electronic states of the lead atom is obtained following the detonation of lead azide. However, measurements have shown that the detonation products form an optically opaque medium. In order to overcome this problem, the detonation was conducted via a supersonic nozzle. As a result a transparent medium was formed near the nozzle exit plane. Strong emission from lead atoms was achieved in this medium. Time- and wavelength resolved measurements have shown that the emission intensity of the 3P1o → 1 D2 transition of the lead atom is significantly enhanced as compared to that from 3P1o to lower lying states. The behavior of the emission is explained in terms of kinetic and spectroscopic (self-trapping) mechanisms. The implication of our results to obtaining laser oscillation following detonation via supersonic nozzles is discussed.

UR - http://www.scopus.com/inward/record.url?scp=0025720402&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:0025720402

SN - 0277-786X

VL - 1397

SP - 169

EP - 172

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

IS - pt 1

Y2 - 10 September 1990 through 14 September 1990

ER -

Studies of short wavelength chemical lasers: Enhanced emission of Pb atoms following detonation of lead azide via a supersonic nozzle

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