Now showing items 1-5 of 5
Dispersion multiplexing with broadband filtering for miniature spectrometers
(Georgia Institute of Technology, 2007-01)
We replace the traditional grating used in a dispersive spectrometer with a multiplex holographic grating to increase the spectral range sensed by the instrument. The multiplexed grating allows us to measure three different, ...
Spherical beam volume holograms for spectroscopic applications: modeling and implementation
(Georgia Institute of Technology, 2004-12)
The spherical beam volume hologram, recorded by a plane wave and a spherical beam, is investigated for spectroscopic applications in detail. It is shown that both the diffracted and the transmitted beam can be used for ...
Role of recording geometry in the performance of spectral diversity filters with spherical beam volume holograms
(Georgia Institute of Technology, 2005-01)
We present experimental demonstrations of spectral diversity filters with spherical beam volume holograms for multimodal multiplex spectroscopy. Major properties of filters under diffuse-light illumination are discussed. ...
Analysis of slitless holographic spectrometers implemented by spherical beam volume holograms
(Georgia Institute of Technology, 2006-05)
The analysis of a slitless volume holographic spectrometer is presented in detail. The spectrometer is based on a spherical beam volume hologram followed by a Fourier-transforming lens and a CCD. It is shown that the ...
Qualitative demonstration of spectral diversity filtering using spherical beam volume holograms
(Georgia Institute of Technology, 2004-06)
We investigate the feasibility of designing spectral diversity filters using spherical beam volume holograms. Our experimental results qualitatively show the separation of the information of different incident wavelength ...