Controlled substance detection and identification system
First Claim
Patent Images
1. A system for detecting controlled substances on an object comprising:
- at least one laser for illuminating at least part of an object with laser energy at a first wavelength;
a second harmonic detector for detecting laser energy scattered from said object to detect scattered laser energy having a second wavelength which is a second harmonic of said first wavelength, wherein detection of scattered laser energy having a second wavelength which is a second harmonic of said first wavelength indicates that one or more controlled substances may be present on said object; and
at least one additional controlled substance detector comprising at least one of a time-resolved luminescence controlled substance detector for detecting luminescence produced by impingement of said laser energy, wherein detection of luminescence indicates that one or more controlled substances may be present on said object, and a Raman scattering controlled substance detector, for detecting Raman scattering produced by impingement of said laser energy.
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Abstract
A system for detecting controlled substances on an object including at least one laser for illuminating at least part of an object with laser energy and either a second harmonic detector or a luminescence controlled substance detector, or both. Additionally, a system also including a Raman scattering controlled substance detector is disclosed.
74 Citations
33 Claims
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1. A system for detecting controlled substances on an object comprising:
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at least one laser for illuminating at least part of an object with laser energy at a first wavelength; a second harmonic detector for detecting laser energy scattered from said object to detect scattered laser energy having a second wavelength which is a second harmonic of said first wavelength, wherein detection of scattered laser energy having a second wavelength which is a second harmonic of said first wavelength indicates that one or more controlled substances may be present on said object; and at least one additional controlled substance detector comprising at least one of a time-resolved luminescence controlled substance detector for detecting luminescence produced by impingement of said laser energy, wherein detection of luminescence indicates that one or more controlled substances may be present on said object, and a Raman scattering controlled substance detector, for detecting Raman scattering produced by impingement of said laser energy. - View Dependent Claims (2, 7, 11, 14, 16)
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3. A system for detecting controlled substances on an object comprising:
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a laser for illuminating at least part of an object with laser energy at a wavelength of at least one of 355 nm and 266 nm; and a time-resolved luminescence controlled substance detector for detecting luminescence produced by impingement of said laser energy, wherein detection of luminescence indicates that one or more controlled substances may be present on said object.
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4. A system for detecting controlled substances on an object comprising:
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a laser for illuminating at least part of an object with laser energy; a time-resolved luminescence controlled substance detector for detecting luminescence produced by impingement of said laser energy, wherein detection of luminescence indicates that one or more controlled substances may be present on said object; and a Raman scattering controlled substance detector for detecting Raman scattering produced by impingement of said laser energy. - View Dependent Claims (5, 8, 13, 15, 17)
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6. A system for detecting controlled substances on an object comprising:
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at least one laser for illuminating at least part of an object with laser energy at a first wavelength; and a time-resolved second harmonic detector for detecting laser energy scattered from said object to detect scattered laser energy having a second wavelength which is a second harmonic of said first wavelength, wherein detection of scattered laser energy having a second wavelength which is a second harmonic of said first wavelength indicates that one or more controlled substances may be present on said object.
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9. A system for detecting controlled substances on an object comprising:
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a laser for illuminating at least part of an object with laser energy; and a time-resolved luminescence controlled substance detector for detecting luminescence produced by impingement of said laser energy, wherein detection of luminescence indicates that one or more controlled substances may be present on said object, said system being an imagewise system.
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10. A system for detecting controlled substances on an object comprising:
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a laser for illuminating at least part of an object with laser energy; and a time-resolved luminescence controlled substance detector for detecting luminescence produced by impingement of said laser energy, wherein detection of luminescence indicates that one or more controlled substances may be present on said object, said system being a non-imagewise system.
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12. A system for detecting controlled substances on an object comprising:
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a laser for illuminating at least part of an object with laser energy; a time-resolved luminescence controlled substance detector for detecting luminescence produced by impingement of said laser energy, wherein detection of luminescence indicates that one or more controlled substances may be present on said object; and a controlled substance identifier.
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18. A method for detecting controlled substances on an object comprising:
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illuminating at least part of an object with laser energy at a first wavelength; and detecting scattered laser energy from said object having a second wavelength which is a second harmonic of said first wavelength, wherein said detecting indicates that one or more controlled substances may be present on said object; and at least one of detecting, in a time-resolved manner, luminescence produced by impingement of said laser energy, wherein said detecting luminescence indicates that one or more controlled substances may be present on said object, and detecting Raman scattering produced by impingement of said laser energy. - View Dependent Claims (19, 24, 27, 30, 32)
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20. A method for detecting controlled substances on an object comprising:
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illuminating at least part of an object with laser energy at a wavelength of at least one of 355 nm and 266 nm; and detecting, in a time-resolved manner, luminescence produced by impingement of said laser energy, wherein said detecting luminescence indicates that one or more controlled substances may be present on said object.
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21. A method for detecting controlled substances on an object comprising:
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illuminating at least part of an object with laser energy; detecting, in a time-resolved manner, luminescence produced by impingement of said laser energy, wherein said detecting luminescence indicates that one or more controlled substances may be present on said object; and detecting Raman scattering produced by impingement of said laser energy. - View Dependent Claims (22, 25, 29, 31, 33)
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23. A method for detecting controlled substances on an object comprising:
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illuminating at least part of an object with laser energy at a first wavelength; and detecting scattered laser energy from said object having a second wavelength which is a second harmonic of said first wavelength, wherein said detecting indicates that one or more controlled substances may be present on said object; said detecting scattered laser energy having a second wavelength which is a second harmonic comprising detecting in a time-resolved manner.
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26. A method for detecting controlled substances on an object comprising:
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illuminating at least part of an object with laser energy; detecting, in a time-resolved manner, luminescence produced by impingement of said laser energy, wherein said detecting luminescence indicates that one or more controlled substances may be present on said object; displaying an image of said object on a display; and visually indicating at least one location of said controlled substance on said display.
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28. A method for detecting controlled substances on an object comprising:
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illuminating at least part of an object with laser energy; detecting, in a time-resolved manner, luminescence produced by impingement of said laser energy, wherein said detecting luminescence indicates that one or more controlled substances may be present on said object; and identifying said controlled substances.
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Specification