Simulative study on speckle-spectral properties of a random pixelated grating.
J Opt Soc Am A Opt Image Sci Vis
; 36(8): 1410-1417, 2019 Aug 01.
Article
en En
| MEDLINE
| ID: mdl-31503568
Speckle spectrometers based on disordered media have shown great prospects and attracted more and more attention. To obtain a larger bandwidth and higher light-energy utilization ratio, a novel speckle spectrometer scheme is proposed based on a random pixelated grating. The speckle generation mechanism of the random pixelated grating is derived by using the diffraction and Fourier transform theory, and the speckle-spectral correlation properties are analyzed through numerical simulation. The influences of system parameters, such as variation ranges of grating periods and orientations, lens focal length, grating pixel size, and pixel number, are investigated. According to the simulation results, the speckle spectrometer system is optimized, and a spectral resolution of up to 0.01 nm can be achieved.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Tipo de estudio:
Clinical_trials
Idioma:
En
Revista:
J Opt Soc Am A Opt Image Sci Vis
Asunto de la revista:
OFTALMOLOGIA
Año:
2019
Tipo del documento:
Article
Pais de publicación:
Estados Unidos