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Updated: Dec 10, 2025

Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors
Published on: January 29, 2013
Polariton Electric-Field Sensor
Emre Togan1, Yufan Li1, Stefan Faelt1,2
1Institute of Quantum Electronics, ETH Zurich, CH-8093 Zurich, Switzerland.
Abstract:
We experimentally demonstrate a dipolar polariton based electric-field sensor. We tune and optimize the sensitivity of the sensor by varying the dipole moment of polaritons. We show polariton interactions play an important role in determining the conditions for optimal electric-field sensing, and achieve a sensitivity of 0.12 V m^{-1} Hz^{-0.5}. Finally, we apply the sensor to illustrate that excitation of polaritons modifies the electric field in a spatial region much larger than the optical excitation spot.
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