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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Stephen A. Burns
  • Vol. 25, Iss. 5 — May. 1, 2008
  • pp: 1039–1050

Adaptive reshaping of objects in (multiparameter) Hilbert space for enhanced detection and classification: an application of receiver operating curve statistics to laser-based mass spectroscopy

Dmitri A. Romanov, Dennis M. Healy, John J. Brady, and Robert J. Levis  »View Author Affiliations


JOSA A, Vol. 25, Issue 5, pp. 1039-1050 (2008)
http://dx.doi.org/10.1364/JOSAA.25.001039


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Abstract

We propose a new approach to the classical detection problem of discrimination of a true signal of interest from an interferent signal, which may be applied to the area of chemical sensing. We show that the detection performance, as quantified by the receiver operating curve (ROC), can be substantially improved when the signal is represented by a multicomponent data set that is actively manipulated by means of a shaped laser probe pulse. In this case, the signal sought (agent) and the interfering signal (interferent) are visualized by vectors in a multidimensional detection space. Separation of these vectors can be achieved by adaptive modification of a probing laser pulse to actively manipulate the Hamiltonian of the agent and interferent. We demonstrate one implementation of the concept of adaptive rotation of signal vectors to chemical agent detection by means of strong-field time-of-flight mass spectrometry.

© 2008 Optical Society of America

OCIS Codes
(000.5490) General : Probability theory, stochastic processes, and statistics
(260.5130) Physical optics : Photochemistry
(350.3450) Other areas of optics : Laser-induced chemistry
(350.5130) Other areas of optics : Photochemistry
(020.2649) Atomic and molecular physics : Strong field laser physics

ToC Category:
Physical Optics

History
Original Manuscript: May 1, 2007
Revised Manuscript: January 17, 2008
Manuscript Accepted: January 24, 2008
Published: April 17, 2008

Citation
Dmitri A. Romanov, Dennis M. Healy, John J. Brady, and Robert J. Levis, "Adaptive reshaping of objects in (multiparameter) Hilbert space for enhanced detection and classification: an application of receiver operating curve statistics to laser-based mass spectroscopy," J. Opt. Soc. Am. A 25, 1039-1050 (2008)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-25-5-1039

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