Micro-opto-mechanical pressure sensor via ring resonator-based Mach–Zehnder interferometer Mahdi Bahadoran, Alireza Aghili and Ahmad Fakhrurrazi Ahmad Noorden Eur. Phys. J. Plus, 137 4 (2022) 427 Published online: 07 April 2022 DOI: 10.1140/epjp/s13360-022-02655-1