Guided wave analysis of fractional TIR-QPM-based broadband SHG in the MIR region in a reverse tapered isotropic slabBhaswati Medhi and Sumita DebEur. Phys. J. Appl. Phys., 84 2 (2018) 20501DOI: https://doi.org/10.1051/epjap/2018180175