Nonnegative Matrix Factorization Numerical Method for Integrated Photonic Cavity Based Spectroscopy

摘要

Nonnegativematrix factorization numericalmethod has been used to improve the spectral resolution of integrated photonic cavity based spectroscopy. Based on the experimental results for integrated photonic cavity device on Optics Letters 32, 632 (2007), the theoretical results show that the spectral resolution can be improved more than 3 times from5.5 nmto 1.8 nm. It is a promising way to release the difficulty of fabricating high-resolution devices.