Upconversion of Infrared Images Using Two-photon Resonant Four-wave Mixing in Metal Vapors PDF Download
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Author: James Holliday Newton
Publisher:
ISBN:
Category : Infrared image converters
Languages : en
Pages : 154
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Book Description
Author: James Holliday Newton
Publisher:
ISBN:
Category : Infrared image converters
Languages : en
Pages : 154
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Book Description
Author:
Publisher:
ISBN:
Category : Military research
Languages : en
Pages : 834
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Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 974
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Author: Institute of Electrical and Electronics Engineers
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ISBN:
Category : Electric engineering
Languages : en
Pages : 722
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Issues for 1973- cover the entire IEEE technical literature.
Author:
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ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 560
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Author: Stanford University. Microwave Laboratory
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Category :
Languages : en
Pages : 2
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Author:
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ISBN:
Category : Lasers
Languages : en
Pages : 814
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Author: Eddy Alfons Stappaerts
Publisher:
ISBN:
Category : Infrared image converters
Languages : en
Pages : 494
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Author: Optical Society of America
Publisher:
ISBN:
Category : Optical instruments
Languages : en
Pages : 438
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Author: Kamala S. Krishnan
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ISBN:
Category :
Languages : en
Pages : 131
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Book Description
This report assesses the practical value of a new technique of upconverting infrared radiation using two-photon pumped alkali metal vapors and compares the relative merits of several approaches to IR imaging. Performance criteria of passive and active IR imaging systems are chosen and practical configurations are defined. The principles of IR upconversion using alkali metal vapors and the infrared quantum counter are detailed. The upconversion efficiency, acceptance angle and IR bandwidth are evaluated. Upconversion with nonlinear crystals and direct detection of IR are also briefly treated. Detailed and practical systems are designed for passive and active imaging based on the several approaches and the performance indicators are evaluated. The upconversion methods in their present stage of development are not found to perform as well as the state-of-the-art direct-detection methods. The infrared quantum counter (IRQC) is at present the best upconversion candidate for thermal imaging because of its ability to integrate the thermal radiation. Upconversion in sodium vapor is promising in both the passive and active cases approaching, in the latter, the performance of direct detection. The IRQC does not appear to have any merit for active imaging. The performance of nonlinear crystal upconverters is significantly poorer than the metal-vapor upconverters.(Author).
