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Large aperture multiplexed diffractive lidar optics
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Rallison, Richard D. |
| Copyright Year | 1999 |
| Description | We have delivered only 2 or 3 UV Holographic Optical Elements (HOEs) thus far and have fallen short of the intended goal in size and in dual wavelength function. Looking back, it has been fortuitous that we even made anything work in the UV region. It was our good fortune to discover that the material we work with daily was adequate for use at 355 nm, if well rinsed during processing. If we had stuck to our original plan of etching in small pieces of fused silica, we would still be trying to make the first small section in our ion mill, which is not yet operational. The original plan was far too ambitious and would take another 2 years to complete beginning where we left off this time. In order to make a HOE for the IR as well as the UV we will likely have to learn to sensitize some film to the 1064 line and we have obtained sensitizer that is reported to work in that region already. That work would also take an additional year to complete. |
| File Size | 1269208 |
| Page Count | 24 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20000051478 |
| Archival Resource Key | ark:/13960/t3fz2702x |
| Language | English |
| Publisher Date | 1999-05-10 |
| Access Restriction | Open |
| Subject Keyword | Optics Multiplexing Silica Glass Holographic Optical Elements Diffractive Optics Ultraviolet Spectra Apertures Etching Optical Radar Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
