Sensitisers. photographic

Those involving selective absorption of light ° Photographic sensitisers (see section 4.5.3) o Security and machine readable data... 

Mann, F. G. (Michaelmas Term 1964). Book reviews The chemistry of photographic sensitisers. Girton Review 9-11. This article was supposedly a review of Hamer s book (see below) but instead, Mann used the space for a biography of Hamer. 

Compound (12.57b) is a dye, but investigations of this type of phosphorus compound are at present very limited. A full assessment of their potential as photographic sensitisers or as ordinary... 

The dyes that perform this function are called spectral sensitisers because they are used to sensitise the photographic emulsion to light across the whole visible spectrum and beyond. Since silver halides are naturally blue sensitive, the green and red spectral sensitiser dyes must also be able to reduce the natural sensitivity of the silver halide emulsion to blue light. The most important class of compounds used in this... 

Merocyanine based spectral sensitising dye for photographic material... 

After a great amount of preliminary work by other authors Meoke and his collaborators (37,68,124) have succedeed in giving a satisfactory analysis of the vibration-rotation spectrum of H2O. Their success depended essentially upon the fact that by means of sensitised plates they could photograph the combination bands in the near infra-red, thus obtaining a much higher resolution than was possible formerly. Eig. 47 shows one of these combination bands. 

The first spectroscopic studies of ytterbium(III) luminescence in solution by Crosby and Kasha were achieved by projecting the dispersed spectrum onto NIR-sensitised photographic paper using long exposure times [4]. Nowadays, sensitive detectors... 

Numerous chemicals are used in processing photographic materials. Many are hazardous, i.e. sensitising, irritant or corrosive to the skin or the respiratory tract and toxic or injurious to the environment. Some of the chemicals are specific to photography, while some have other applications as well. Only skin effects will be discussed below. 

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