High efficiency phase flattening based Laguerre-Gauss (LG) spectrometer using variable focus lenses

Mumtaz Sheikh, Haad Yaqub Rathore, Sohaib Abdul Rehman

We propose a novel high-efficiency no-moving-parts Laguerre-Gauss (LG) spectrometer using two variable focus lenses and a variable sized pinhole that overcomes the limitations of t…