The resolution of a miniature spectrometer with a multichannel detector is limited by its throughput. A subpixel deconvolution method is proposed to enhance resolution without physically reducing the throughput. The method introduces subpixel reconstruction to overcome undersampling during deconvolution processing. The experimental result has shown a 36.6% reduction in FWHM of spectral lines, indicating the effectiveness of the method.
© 2007 Optical Society of America
Original Manuscript: October 10, 2006
Revised Manuscript: January 11, 2007
Manuscript Accepted: January 31, 2007
Published: May 15, 2007
Li Xu, Huaidong Yang, Kexin Chen, Qiaofeng Tan, Qingsheng He, and Guofan Jin, "Resolution enhancement by combination of subpixel and deconvolution in miniature spectrometers," Appl. Opt. 46, 3210-3214 (2007)