A Novel Approach to Detect Nanoparticle Concentration Using Active
Cavity WGM Sensor
Abstract
This paper presents a new approach to nanoparticle detection
using an active micro-resonator operating in the transparency regime.
Simulations demonstrate that when nanoparticles interact with the
micro-resonator surface, they induce optical losses. To compensate for
these losses, the optical gain is amplified to restore the transparency
regime. Simulation results show a linear relationship between
nanoparticle concentration and the pump power required to compensate for
optical losses. By the use of micro-resonator with a very high quality
factor, this approach offers an accurate and sensitive method for
detecting nanoparticles, without the need for complex equipment.
