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Infrared Imaging Abstracts for 1999 - 2001

The following Abstracts of journal literature and patent specifications are taken, with kind permission, from Imaging Abstracts, published by Pira International on behalf of The Royal Photographic Society of Great Britain.

The abstracts are Copyright © 1997-2003 Pira International on behalf of the RPS. Original documents are in English unless otherwise stated. For further information on Imaging Abstracts, which is available on paper, online and on CD-ROM, contact Pira International or email infocentre@pira.co.uk.

Other Abstracts: 1993-5, 1996, 1997, 1998, 2002-

 

Patent: Infrared Camera Lens

Koyama M (Nikon Corp)
US 5,909,307 1.6.99

A lens for use in an infrared camera contains two main lens groups, which from the object side have negative and positive refractive powers, respectively. The first lens group consists of a negative meniscus lens with a convex surface facing the object side; the second lens group contains three lens sub-groups, with positive, negative and positive refractive powers, respectively.

Patent: Wide Band Infrared Camera Lens

Zhang S (Nikon Corp)
US 5,940,224 17.8.99

A lens system for use in a wide band infrared camera has an effective bandwidth of from 1 to 5 µm. It contains two groups of lens elements, and an aperture stop which coincides with a cold stop of the lens system, which has a 100% cold stop efficiency.

Micromachined Silicon Grisms: High Resolution Spectroscopy in the Near Infrared

Cianci E, Vitali F, Lorenzetti D, Notargiacomo A, Giovine E (Osservatorio Astron di Roma Italy)
Microelectron. Eng. vol. 53, nos. 1/4, 2000, pp 543-546

An infrared camera, in addition to its normal imaging mode, can be used in the spectroscopic mode, yielding high resolution, with the aid of a silicon grism, which is a prism with a grating attached. Means of producing these grisms by chemical etching, micromachining, and electron beam lithography, are described. 8 refs.

Patent: Image Recording Material

Kobayashi F, Kitatani K, Oshima Y (Fuji Photo Film Co)
US 6,162,574 19.12.00

An image recording material for infrared radiation contains a diazonium salt of a stated formula, an IR radiation absorbing agent, an agent which crosslinks in the presence of an acid, and a binder. The material is able to produce directly a lithographic printing plate using IR radiation, the exposure being controlled by digital computer signals.

Near-field Optical Microscopy with a Free-electron Laser in the 1-10 µm Spectral Range

Cricenti A (CNR Rome Italy)
Appl. Surf. Sci. vols. 162/163, 2000, pp 275-279

A scanning near-field optical microscope has been used with infrared radiation (wavelengths 1 to 10 µm) from a free-electron laser in a study of the lateral variations of solid interface properties. The local optical properties were determined of a variety of systems, and factors absent from the relevant topological images were detected, and were attributed to local changes in the specimens. 15 refs.

High-speed IR Camera Instrumentation and Applications

Sunose M (Seki Technotron Corp Tokyo Japan)
J. Jpn. Soc. Infrared Sci. Technol. vol. 10, no. 1, 2000, pp 42-47

An indium/antimony focal plane array is incorporated in an infrared camera; its mode of construction and operation are described, and its potential applications to high-speed infrared imaging are discussed. (In Japanese.)

Trends of Nikon's Cooled Thermal Imaging Systems

Kiyota Y (Nikon Corp Tokyo Japan)
J. Jpn. Soc. Infrared Sci. Technol. vol. 10, no. 1, 2000, pp 48-53

Most thermal imaging systems have a single broad spectral response to infrared radiation, and hence are unable to provide information on the spectral distribution of a radiation source. A limited number of multi-infrared CCDs, and coated infrared CCDs, has been produced which are able to provide such spectral data, and their potential applications are discussed. (In Japanese.)

The Herculaneum Scrolls

Booras SW, Chabries DM (Brigham Young University Provo USA)
I S and T Reporter vol. 16, no. 2, 2001, pp 1-4

One of the consequences of the eruption of Mt. Vesuvius in A.D. 79 was the burial of an extensive collection of papyri under the ejected lava and other material. Some of this collection has been separated into discrete sheets, and techniques of multispectral imaging have been used for their deciphering. Images obtained with infrared radiation of 950 nm wavelength have proved very satisfactory.

Pattern Characterization of Deep Ultraviolet Photoresists by Near-field Infrared Microscopy

Dragnea B, Preusser J, Szarko J M, Leone S R, Hinsberg W D (Colorado University USA)
J. Vac. Sci. Technol. vol. 19, no. 1, 2001, pp 142-152

A fibre-based infrared near-field microscope, using radiation of wavelength 3 µm, has been used to study the image characteristics of a chemically amplified photoresist, 250 nm thick, which had been patterned by ultraviolet radiation. 37 refs.

Evaluation of Thermal Cameras for Non-destructive Thermal Testing Applications

Chrzanowski K, Park SN (Military University of Technology Warsaw Poland)
Infrared Phys. Technol. vol. 42, no. 2, 2001, pp 101-105

The American Society for Testing of Materials has issued two standards for the evaluation of commercial thermal cameras. It is suggested that the instructions for the practical usage of information gained are inadequate, and more detailed methods are proposed. 12 refs.

Coherent Infrared Image Converter based on GaAs and BSO Crystals

Salamov B G, Kurt Y K, Lebedeva N N, Altindal S, Ozer M (Gazi University Ankara Turkey, Baku State University Azerbaijan)
Imag. Sci. J. vol. 49, no. 4, 2001, pp 197-203

A description is given of a novel type of incoherent-to-coherent infrared image converter, using a GaAs photoconductor in conjunction with a bismuth silicate crystal. The threshold sensitivity of the converter is calculated on theoretical grounds, and the agreement with a practical evaluation is reasonable. The advantages of the device are indicated. 28 refs.

Near-field Infrared Microscopy with a Transient Photoinduced Aperture

Simanovskii D, Palanker D, Cohn K, Smith T (Stamford University USA)
Appl. Phys. Lett. vol. 79, no. 8, 2001, pp 1214-1216

A novel technique of near-field infrared microscopy is described in which a semiconductor produces photoinduced reflectivity to generate a transient mirror with a small central aperture, which can act as an infrared probe. The instrument is able to give a resolution better than lambda/5 for 6.25 µm radiation. The advantages of the procedure are discussed. 7 refs.

Coherent Infrared Image Converter based on GaAs and BSO Crystals

Salamov B G, Kurt Y K, Lebedeva N N, Altindal S, Ozer M (Gazi University Ankara Turkey, Baku State University Azerbaijan)
Imag. Sci. J. vol. 49, no. 4, 2001, pp 197-203

A description is given of a novel type of incoherent-to-coherent infrared image converter, using a GaAs photoconductor in conjunction with a bismuth silicate crystal. The threshold sensitivity of the converter is calculated on theoretical grounds, and the agreement with a practical evaluation is reasonable. The advantages of the device are indicated. 28 refs.

Apertureless Scanning Near-field Infrared Microscopy of a Rough Polymeric Surface

Akhremitchen B B, Pollack S, Walker G C (Pittsburgh University USA)
Langmuir, vol. 17, no. 9, 2001, pp 2774-2781

The surface of a cast polymer film has been studied by means of an apertureless probe method using infrared near-field microscopy. Two different procedures were described, and their relative merits were considered. 38 refs.

Chemical Imaging of Iron Oxides and Oxyhydroxides using Near Infrared Raman Imaging Microscopy

Jallad K N, Ben-Amoz D (Purdue University West Lafayette USA)
Mater. Sci. Technol. vol. 17, no. 11, 2001, pp 1479-1486

Near infrared Raman imaging microscopy is a novel technique which has been devised for both the identification and mapping of the distribution of iron oxides and oxyhydroxides in minerals, corroded steel surfaces and other materials. Its mode of action is described and its ability to distinguish between microstructures indicated. 15 refs.

More background on infrared photography
Technical background Thermal Imaging NASA IR Video Camera
IR 'Colour' Mapping Noctovision  
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