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Absolute Linear-in-K Spectrometer Using Freeform Optics
We present an optical design method and solutions of linear-in-k spectrometers exhibiting extremely low residual nonlinearity (< 10E-4%) made possible by the inclusion of a freeform optics. Previous work in the literature shows that hardware-based solutions for k-linearization by adding a prism after the grating have residual non-linearity. The merit...
Published: 11/15/2019   |   Inventor(s): Jannick Rolland-Thompson, Aaron Bauer, Changsik Yoon
Category(s): Optics, Devices