Citation:
Liron Stern, Goykhman, Ilya , Desiatov, Boris , and Levy, Uriel . 2012. “Frequency Locked Micro Disk Resonator For Real Time And Precise Monitoring Of Refractive Index”. Optics Letters, 37, 8, Pp. 1313–1315. doi:10.1364/OL.37.001313.
Abstract:
We experimentally demonstrate a frequency modulation locked servo loop, locked to a resonance line of an on-chip microdisk resonator in a silicon nitride platform. By using this approach, we demonstrate real-time monitoring of refractive index variations with a precision approaching 10−7 RIU, using a moderate Q factor of 104. The approach can be applied for intensity independent, dynamic and precise index of refraction monitoring for biosensing applications.