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Fabrication and testing of binary-phase fourier gratings for nonuniform array generation
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Keys, Andrew S. Nelson Jr., Tom R. Beecher, Elizabeth A. Crow, Robert W. Ashley, Paul R. Parker, Jack H. |
| Copyright Year | 2004 |
| Description | This effort describes the fabrication and testing of binary-phase Fourier gratings designed to generate an incoherent array of output source points with nonuniform user-defined intensities, symmetric about the zeroth order. Like Dammann fanout gratings, these binary-phase Fourier gratings employ only two phase levels to generate a defined output array. Unlike Dammann fanout gratings, these gratings generate an array of nonuniform, user-defined intensities when projected into the far-field regime. The paper describes the process of design, fabrication, and testing for two different version of the binary-phase grating; one designed for a 12 micron wavelength, referred to as the Long-Wavelength Infrared (LWIR) grating, and one designed for a 5 micron wavelength, referred to as the Mid-Wavelength Infrared Grating (MWIR). |
| File Size | 3656358 |
| Page Count | 3 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20040171540 |
| Archival Resource Key | ark:/13960/t3324wr9q |
| Language | English |
| Publisher Date | 2004-01-01 |
| Access Restriction | Open |
| Subject Keyword | Optics Fabrication Optical Filters Infrared Astronomy Performance Tests Gratings Spectra Infrared Filters Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
