Voltage-tunable Q factor in a photonic crystal microcavity

Krasnov, A.I., Pankin, P.S., Buzin, D.S., (...), Vetrov, S.Ya., Timofeev, I.V.// Optics Letters//

A photonic crystal microcavity with a tunable quality factor (Q factor) has been implemented on the basis of a bound state in the continuum using the advanced liquid crystal cell technology platform. It has been shown that the Q factor of the microcavity changes from 100 to 360 in the voltage range of 0.6 V.