Hyperspectral prism-grating-prism imaging spectrograph

Dissertation

Research output: ThesisDissertationMonograph

13 Citations (Scopus)

Abstract

A new type of a direct vision dispersing component, the prism-grating-prism (PGP), was invented by the author in 1991. This patented component allows small, low-cost hyperspectral imaging spectrographs suitable for industrial and research applications in the wavelength range from 320 nm to 2700 nm, limited by the transmission of the grating material. The PGP spectrograph optics and the design procedure are described. The concept has been applied to many hyperspectral imaging spectrographs. The potential of the PGP construction is shown by introducing four designs in detail. 1) The prototype of a low-cost airborne hyperspectral imaging spectrograph, AISA, was the first application of the PGP concept. 2) A microscope imaging UV-VIS-NIR spectrometer system for spectral measurement of micrometer-sized objects such as wood fibers was developed. 3) A multiple-points PGP spectrograph connected to optical fibre probes was designed for industrial applications such as on-line colour and oil film thickness measurements. 4) The PGP spectrograph design for a high-speed interrogation system for large-scale fibre optic Bragg grating arrays is described. The PGP concept and the results of the developement work were so promising, that a company was founded in 1995 to commercialize, further develope and manufacture PGP spectrograph technology. Today PGP spectrographs are used world-wide for industrial machine vision and spectral analysis, airborne remote sensing and scientific applications in the form of standard products and customized OEM components.
Original languageEnglish
QualificationDoctor Degree
Awarding Institution
  • University of Oulu
Supervisors/Advisors
  • Myllyla, Risto, Supervisor, External person
Award date16 Jun 2001
Place of PublicationEspoo
Publisher
Print ISBNs951-38-5850-2
Electronic ISBNs951-38-5851-0
Publication statusPublished - 2001
MoE publication typeG4 Doctoral dissertation (monograph)

Fingerprint

prisms
spectrographs
gratings
interrogation
dispersing
computer vision
Bragg gratings
spectrum analysis
micrometers
remote sensing
fiber optics

Keywords

  • imaging spectroscopy
  • prism-grating-prism components
  • PGP
  • optical design
  • fiber optics
  • hyperspectral
  • airborne

Cite this

Aikio, M. (2001). Hyperspectral prism-grating-prism imaging spectrograph: Dissertation. Espoo: VTT Technical Research Centre of Finland.
Aikio, Mauri. / Hyperspectral prism-grating-prism imaging spectrograph : Dissertation. Espoo : VTT Technical Research Centre of Finland, 2001. 125 p.
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abstract = "A new type of a direct vision dispersing component, the prism-grating-prism (PGP), was invented by the author in 1991. This patented component allows small, low-cost hyperspectral imaging spectrographs suitable for industrial and research applications in the wavelength range from 320 nm to 2700 nm, limited by the transmission of the grating material. The PGP spectrograph optics and the design procedure are described. The concept has been applied to many hyperspectral imaging spectrographs. The potential of the PGP construction is shown by introducing four designs in detail. 1) The prototype of a low-cost airborne hyperspectral imaging spectrograph, AISA, was the first application of the PGP concept. 2) A microscope imaging UV-VIS-NIR spectrometer system for spectral measurement of micrometer-sized objects such as wood fibers was developed. 3) A multiple-points PGP spectrograph connected to optical fibre probes was designed for industrial applications such as on-line colour and oil film thickness measurements. 4) The PGP spectrograph design for a high-speed interrogation system for large-scale fibre optic Bragg grating arrays is described. The PGP concept and the results of the developement work were so promising, that a company was founded in 1995 to commercialize, further develope and manufacture PGP spectrograph technology. Today PGP spectrographs are used world-wide for industrial machine vision and spectral analysis, airborne remote sensing and scientific applications in the form of standard products and customized OEM components.",
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Aikio, M 2001, 'Hyperspectral prism-grating-prism imaging spectrograph: Dissertation', Doctor Degree, University of Oulu, Espoo.

Hyperspectral prism-grating-prism imaging spectrograph : Dissertation. / Aikio, Mauri.

Espoo : VTT Technical Research Centre of Finland, 2001. 125 p.

Research output: ThesisDissertationMonograph

TY - THES

T1 - Hyperspectral prism-grating-prism imaging spectrograph

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AB - A new type of a direct vision dispersing component, the prism-grating-prism (PGP), was invented by the author in 1991. This patented component allows small, low-cost hyperspectral imaging spectrographs suitable for industrial and research applications in the wavelength range from 320 nm to 2700 nm, limited by the transmission of the grating material. The PGP spectrograph optics and the design procedure are described. The concept has been applied to many hyperspectral imaging spectrographs. The potential of the PGP construction is shown by introducing four designs in detail. 1) The prototype of a low-cost airborne hyperspectral imaging spectrograph, AISA, was the first application of the PGP concept. 2) A microscope imaging UV-VIS-NIR spectrometer system for spectral measurement of micrometer-sized objects such as wood fibers was developed. 3) A multiple-points PGP spectrograph connected to optical fibre probes was designed for industrial applications such as on-line colour and oil film thickness measurements. 4) The PGP spectrograph design for a high-speed interrogation system for large-scale fibre optic Bragg grating arrays is described. The PGP concept and the results of the developement work were so promising, that a company was founded in 1995 to commercialize, further develope and manufacture PGP spectrograph technology. Today PGP spectrographs are used world-wide for industrial machine vision and spectral analysis, airborne remote sensing and scientific applications in the form of standard products and customized OEM components.

KW - imaging spectroscopy

KW - prism-grating-prism components

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KW - optical design

KW - fiber optics

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KW - airborne

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Aikio M. Hyperspectral prism-grating-prism imaging spectrograph: Dissertation. Espoo: VTT Technical Research Centre of Finland, 2001. 125 p.