A low-cost, ultra-wide range infrared polarizer
A low-cost, ultra-wide range infrared polarizer
There is a shortage of convenient, low-cost, wide-range infrared polarizers. Only wire grid devices are available to cover the entire mid- and far-infrared region, several high-cost polarizers being needed to cover the full spectral range, with limited performance. It is shown that a "pile-of-plates" polarizer suitable for use in Fourier transform infrared spectrophotometers can be constructed from semiconductor grade silicon (resistivity exceeding 10 Ωcm, n-type preferably float-zone silicon) which can be used from about 1.2µm to above 250µm. "Optical grade" silicon is not reliably suitable for use in the far infrared. The polarizer is ideal for use with some lasers (He-Ne 1.52 or 3.39µm lines, CO, HF, DF and diodes) but it is not suitable for carbon dioxide lasers of significant power.
1124-1132
Rutt, H.N.
e09fa327-0c01-467a-9898-4e7f0cd715fc
1995
Rutt, H.N.
e09fa327-0c01-467a-9898-4e7f0cd715fc
Abstract
There is a shortage of convenient, low-cost, wide-range infrared polarizers. Only wire grid devices are available to cover the entire mid- and far-infrared region, several high-cost polarizers being needed to cover the full spectral range, with limited performance. It is shown that a "pile-of-plates" polarizer suitable for use in Fourier transform infrared spectrophotometers can be constructed from semiconductor grade silicon (resistivity exceeding 10 Ωcm, n-type preferably float-zone silicon) which can be used from about 1.2µm to above 250µm. "Optical grade" silicon is not reliably suitable for use in the far infrared. The polarizer is ideal for use with some lasers (He-Ne 1.52 or 3.39µm lines, CO, HF, DF and diodes) but it is not suitable for carbon dioxide lasers of significant power.
Text
mt950806.pdf
- Version of Record
Restricted to Repository staff only
Request a copy
More information
Published date: 1995
Organisations:
Optoelectronics Research Centre
Identifiers
Local EPrints ID: 77766
URI: http://eprints.soton.ac.uk/id/eprint/77766
ISSN: 0957-0233
PURE UUID: 2ce2c262-58dc-4284-909c-5106d6c03048
Catalogue record
Date deposited: 11 Mar 2010
Last modified: 13 Mar 2024 23:59
Export record
Altmetrics
Contributors
Author:
H.N. Rutt
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics