Go to  Advanced Search

Vacuum deposited optical phase filters

Show full item record

Files in this item

Files Size Format Description   View
UBC_1976_A7 G73.pdf 7.952Mb Adobe Portable Document Format   View/Open
 
Title: Vacuum deposited optical phase filters
Author: Graf, Stephen
Degree Master of Applied Science - MASc
Program Electrical and Computer Engineering
Copyright Date: 1976
Subject Keywords Optical storage devices
Abstract: The advantages of an optical spatial phase filter constructed by thickness variations are put forward and a method of fabricating such a device using vacuum deposition techniques is detailed. The design and construction of a vacuum system to produce such a device is outlined. The system comprises a vacuum chamber with a source holder for zinc sulfide, an electronically controlled shutter, an aperture, and a substrate and holder mounted on an x-y motion table driven by stepper motors. The system is controlled by a minicomputer and measurements of thickness are made by an ellipsometer controlled by the minicomputer. Experiments conducted with the system determine the spatial resolution and closed loop control capabilities to be adequate. An analysis of the results of the tests concludes that with further refinements it seems feasible to fabricate spatial phase filters by using vacuum deposition techniques.
URI: http://hdl.handle.net/2429/19888
Series/Report no. UBC Retrospective Theses Digitization Project [http://www.library.ubc.ca/archives/retro_theses/]

This item appears in the following Collection(s)

Show full item record

All items in cIRcle are protected by copyright, with all rights reserved.

UBC Library
1961 East Mall
Vancouver, B.C.
Canada V6T 1Z1
Tel: 604-822-6375
Fax: 604-822-3893