Miniature spectrometer based on diffraction in a dispersive hole array

We present an ultra-compact spectrometer that uses a 10×10 hole array as the dispersive component. Our analysis shows that the two-dimensional intensity distribution can be modeled by a system of simultaneous linear equations when the size of each hole in the dispersive component has been pre-design...

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Bibliographic Details
Published in:Optics letters 2015-07, Vol.40 (13), p.3217-3220
Main Authors: Yang, Tao, Xu, Cao, Ho, Ho-pui, Zhu, Yong-yuan, Hong, Xu-hao, Wang, Qian-jin, Chen, Yu-chao, Li, Xing-ao, Zhou, Xin-hui, Yi, Ming-dong, Huang, Wei
Format: Article
Language:English
Subjects:
Arrays
Calibration
Diffraction
Dispersion
Linear equations
Miniature
Optical Phenomena
Reconstruction
Spectrometers
Spectrum Analysis - instrumentation
Wavelengths
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Summary:We present an ultra-compact spectrometer that uses a 10×10 hole array as the dispersive component. Our analysis shows that the two-dimensional intensity distribution can be modeled by a system of simultaneous linear equations when the size of each hole in the dispersive component has been pre-designed appropriately. One can readily recover the spectral contents of the input radiation by solving the linear equation system with regularized procedure. Experimental results show that the reconstruction range is at least within the entire visible band, which can be further extended if a near-infrared CCD is used. One therefore envisions strong potential for many wavelength analysis applications.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.40.003217