Atomic resonance spectrometers and filters (review)

Matveev, O. I.

doi:10.1007/bf00660202

Cited by 9 publications

(6 citation statements)

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“…9 by partitioning of an imaging surface into sm aller sections with quasi-uniform illum ination or the use of the form ulas described by Matveev. 6 It is interesting to note that, from Eq. 9, it follows that it is m ore bene® cial, in practice, to detect a single atom or molecule by using an imaging device rather than a spectrometer or interferometer, since the¯uorescence photons from one atom or one molecule will always occupy only one pixel, and one would have Ï P times the signal-to-noise improvement.…”

Section: Discussionmentioning

confidence: 99%

“…9, it follows that it is m ore bene® cial, in practice, to detect a single atom or molecule by using an imaging device rather than a spectrometer or interferometer, since the¯uorescence photons from one atom or one molecule will always occupy only one pixel, and one would have Ï P times the signal-to-noise improvement. 6 Equations 8 and 9, for nonimaging and imaging spectral devices, are ver y similar; it is worthwhile to compare the ultra-narrow-band atom ic vapor imaging spectrom eters with conventional, well-known instrumental systems. As can be seen from Eqs.…”

Section: Discussionmentioning

confidence: 99%

“…6±9 The physical principle of these new techniques is the indirect detection of the absorption of resonance photons in an atomic vapor by one of several approaches. 6 Practically all known types of spectrometers can be used to acquire one-or two-dimensional imaging inform ation, and, in principle, all of them can be devised to provide high resolving power, i.e., R 5 10 5 ±10 6 . However, for most conventional spectrometers, one has the inherent problem that increasing the resolving power (R) decreases the luminosity (L) or throughput, 10±17 or, in other words, the product of these two param eters is a constant.…”

Section: Introductionmentioning

confidence: 99%

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Relevance of the Luminosity-Resolving Power Product for Spectroscopic Imaging

et al. 1999

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The luminosity-resolving power products of several different types of modern spectrometric imaging and nonimaging systems have been compared. It is shown that if a narrow-band signal is detected in the presence of strong, spectrally continuous background, the luminosity-resolving power product is the critical figure of merit controlling the potential signal-to-noise ratio. Within a spectral resolving power range of 105–109, the signal-to-noise ratio that can be attained by atomic vapor detectors and filters, and by resonance ionization detectors in particular, can be 2–3 orders of magnitude higher than that for the best traditional spectroscopic approaches.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Relevance of the Luminosity-Resolving Power Product for Spectroscopic Imaging

et al. 1999

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“…Matveev reviews the development of such filters, categorizing the variations of the atomic spectrometer. [Matveev (1987) The filter presented in this chapter is based on the absorption and subsequent fluorescence of light by atomic mercury vapor, and most similar in design to Langberg's "image forming resonance scatter filter." [Langberg] The strong, and spectrally sharp absorption features of mercury (at 253.7 nm) provide the desired spectral discrimination.…”

Section: Excited Electronic Statementioning

confidence: 99%

Development of Pulse-Burst Laser Source and Digital Image Processing for Measurements of High-Speed, Time-Evolving Flow

Miles¹

2000

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Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing this collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden to Department of Defense, Washington Headquarters Services, Directorate for Information Operations and Reports (0704-0188), 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302. Respondents should be aware that notwilhstanding any other provision of law, no person shall be subject to any penalty for failing to comply wilh a collection of information if it does not display a currently valid OMB control number PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ADDRESS. REPORT DATE (DD-MM-YYYY)08 PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES)Princeton UniversityDepartment of Mechanical & Aerospace Engineering Princeton, NJ 085448. PERFORMING ORGANIZATION REPORT NUMBER The students have more recently been working in conjunction on the development of diagnostics in association with "Shock Propagation and Supersonic Drag in Low Temperature Plasmas (#F49620-97-l-0497) which began June 1, 1997. SPONSORING / MONITORING AGENCY NAME(S) AND ADDRESS(ES)AirMajor accomplishments achieved under this AASERT Grant were the fabrication of a cavity-locked, injection-seeded Ti:Sapphire Laser and the demonstration of UV filtered Rayleigh scattering imaging in a supersonic jet, the fabrication/ characterization of a narrow passband transmission filter, and the development of a new concept for a line imaging Raman spectrometer for flow field, combustion, and plasma diagnostics. 15. SUBJECT TERMS Pulse burst lasers, passband transmission filters, Rayleigh scattering imaging 609-258-5131 163Standard Form 298 Prescribed bv ANSI "DEVELOPMENT OF PULSE-BURST LASER SOURCE AND DIGITAL IMAGE PROCESSING FOR MEASUREMENTS OF HIGH-SPEED, TIME-EVOLVING FLOW" FINAL TECHNICAL REPORTFor the Period 7/15/94 -7/14/98 AFOSR Grant #F49620-94-1-0372 P00002 (Report dated 8/22/00)AASERT STUDENTS: Noah Finkelstein, Vincent Chiravalle, and Alan Morgan INTRODUCTION:This AASERT grant on the development of a "Pulse-Burst Laser Source and Digital Image Processing for Measurements of High-Speed, Time-Evolving Flow," was originally paired with Grant #F49620-92-J-0217, entitled, "Quantitative Imaging of Time-Evolving Structure in Supersonic and Hypersonic Flows." This grant ended in December 1994, and the students then began working in conjunction with the AFOSR University Research Initiative (URI) in Aerothermochemistry, entitled, "Turbulent Reacting Flows at High Speed" (Grant #F49620-93-1-0427). Since the URI program encompassed the development of advanced diagnostics and the application of the pulse-burst laser, this pairing was appropriate. That grant officially ended June 30, 1997. Students associated with the AASERT cont...

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“…To realize these ultimate figures of merit, different types of RIID atomic vapor cells, either filled by an inert gas or evacuated, have been suggested and studied. 7,8 The vacuum variant of the RIID cell can work, for example, using the principle of the image intensifier. 9 Electrons or ions, which are created close to the input surface of the RIID cell, as a result of resonance ionization of atoms, can be accelerated by an electric field, strike a luminescent screen or microchannel plate and produce an image.…”

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confidence: 99%

A low pressure mercury vapor resonance ionization image detector

Matveev

Smith

Winefordner

1998

Applied Physics Letters

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Narrow-band spectrally selective image detection based upon the resonance ionization of mercury atoms in a low pressure cell is described. Image dimensions and intensities were measured versus the wavelength of ionizing laser radiation and the dependence upon the voltage applied to electrodes was studied. The position sensitive image of the electron beam, created by two-step resonance photoionization of mercury, was studied when the detected laser beam was scanned spatially. A distorting influence of space charge due to positive mercury ions on the electron beam image was observed. Means of eliminating these distortions are discussed.

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Atomic resonance spectrometers and filters (review)

Cited by 9 publications

References 50 publications

Relevance of the Luminosity-Resolving Power Product for Spectroscopic Imaging

Relevance of the Luminosity-Resolving Power Product for Spectroscopic Imaging

Development of Pulse-Burst Laser Source and Digital Image Processing for Measurements of High-Speed, Time-Evolving Flow

A low pressure mercury vapor resonance ionization image detector

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