Browse Prior Art Database

Prism Coupling Device

IP.com Disclosure Number: IPCOM000061911D
Original Publication Date: 1986-Jul-01
Included in the Prior Art Database: 2005-Mar-09
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Babarczy, EJ: AUTHOR [+3]

Abstract

A prism coupling device is shown in which a spring coupling mechanism maintains contact between the prism and a thin film at both cryogenic and elevated temperatures.

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Prism Coupling Device

A prism coupling device is shown in which a spring coupling mechanism maintains contact between the prism and a thin film at both cryogenic and elevated temperatures.

The prism coupling device includes a spring activated coupling mechanism 1, which provides a force sufficient to keep the prism 2 in intimate contact with the thin film 3 over a temperature range of + 125OEC, for example. The spring activated coupling means 1 comprises bar members 4 separated by spring members 5. The force produced by coupling means 1 is adjusted by means of thumb screw 6 which is threaded in frame member 7 in a position to engage one of the bar members 4.

The prism coupling device is useful in the investigation of optical properties of thin films, for example. In this usage, laser light can be coupled into the thin film 3 upon which the prism 2 is pressed. The temperature of this coupling assembly can then be varied by attaching to a heater/refrigerator block 8.

For measurements at cryogenic temperatures (<0OEC), the entire assembly is enclosed in an evacuated enclosure which is outfitted with thin windows for laser beam entry and exit.

Disclosed anonymously.

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