Loading...
Please wait, while we are loading the content...
Similar Documents
Micro spectrometer for parallel light and method of use
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Copyright Year | 2011 |
| Description | A spectrometer system includes an optical assembly for collimating light, a micro-ring grating assembly having a plurality of coaxially-aligned ring gratings, an aperture device defining an aperture circumscribing a target focal point, and a photon detector. An electro-optical layer of the grating assembly may be electrically connected to an energy supply to change the refractive index of the electro-optical layer. Alternately, the gratings may be electrically connected to the energy supply and energized, e.g., with alternating voltages, to change the refractive index. A data recorder may record the predetermined spectral characteristic. A method of detecting a spectral characteristic of a predetermined wavelength of source light includes generating collimated light using an optical assembly, directing the collimated light onto the micro-ring grating assembly, and selectively energizing the micro-ring grating assembly to diffract the predetermined wavelength onto the target focal point, and detecting the spectral characteristic using a photon detector. |
| File Size | 689747 |
| Page Count | 9 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20110023451 |
| Archival Resource Key | ark:/13960/t5m95754t |
| Language | English |
| Publisher Date | 2011-11-15 |
| Access Restriction | Open |
| Subject Keyword | Collimation Gratings Spectra Miniaturization Light Visible Radiation Electromagnetic Spectra Spectrometers Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Patent |
