MODIFICATION
66 -- INFRARED NARROW BAND OPTICAL FILTER
- Notice Date
- 10/2/2003
- Notice Type
- Modification
- Contracting Office
- NASA/Langley Research Center, Mail Stop 144, Industry Assistance Office, Hampton, VA 23681-0001
- ZIP Code
- 23681-0001
- Solicitation Number
- 1-LAH-23952
- Response Due
- 10/8/2003
- Archive Date
- 10/2/2004
- Point of Contact
- Marie W. Hamann, Contract Specialist, Phone (757) 864-2258, Fax (757) 864-7709, Email Marie.W.Hamann@nasa.gov - Lionel E Nadeau, Contract Specialist, Phone (757) 864-2434, Fax (757) 864-8863, Email Lionel.E.Nadeau@nasa.gov
- E-Mail Address
-
Email your questions to Marie W. Hamann
(Marie.W.Hamann@nasa.gov)
- Description
- This is a modification to the synopsis entitled Infrared Narrow Band Optical Filter, number 1-LAH-23952 which was posted on 9/3/2003. This modification is to answer questions received as follows: 1). What are your blocking requirements? It states TBD but we need this information to finalize the substrate and coatings. Out of band blocking: maximum transmission to be less than 0.1% from UV to 16 microns. We would like blocking of far IR also, but we plan to use other filters for that if necessary. 2). How this would you require the substrate if we use Ge? The above is consistent with a Ge substrate. 3). What wedge is required for a Ge substrate? Wedging is not required if an anti-reflection coating on the rear surface of the filter sufficiently reduces channeling effects. Our spectral resolution will be 0.07 cm-1 so channeling fringe spacing should be much less than this (~0.1 cm-1) OR the fringe contrast should be less than 10% in the band pass region. A wedged filter substrate producing fringe spacings of 0.1 cm-1 or less is acceptable. Also acceptable is a filter with an anti-reflection coating which produces a peak-to-valley variations in filter fringe amplitude less than or equal to 10% of the signal transmitted by the filter in the band pass region. 4). What are your surface quality requirements? <0.5 wave pre-coated substrate flatness (peak to peak) The due date for responses IS extended through 10/8/2003. Documents related to this procurement are available over the Internet and are in Microsoft Office 97 format and will reside on a World Wide Web (WWW) server, which may be accessed using a WWW browser application. The Internet site, or URL, for the NASA/LaRC Business Opportunities home page is http://prod.nais.nasa.gov/cgi-bin/eps/bizops.cgi?gr=CL&pin=23 Offerors are responsible for monitoring this site for the release of the solicitation and any amendments. Potential offerors are responsible for downloading their own copy of the solicitation and amendments (if any). [INSERT ANY APPLICABLE NOTES]
- Web Link
-
Click here for the latest information about this notice
(http://prod.nais.nasa.gov/cgi-bin/eps/bizops.cgi?gr=D&pin=23#107277)
- Record
- SN00446751-W 20031004/031002213239 (fbodaily.com)
- Source
-
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