title: High-Q planar organic-inorganic Perovskite-based microcavity.
abstract: We report on the fabrication of a perovskite-based ((C6H5C2H4 - NH3)2 PbI4) planar microcavity with a technique of a top dielectric mirror's migration in liquid, avoiding the degradation of the perovskite material. This approach allows for increasing the cavity Q-factor, without degrading the fragile molecular material. Strong coupling of the perovskite exciton to both the cavity mode and the first Bragg mode is evidenced from angle-resolved reflectivity and microphotoluminescence measurements at room temperature; an efficient relaxation toward the minimum of the main polariton branch is observed. The measured quality factor is significantly increased compared to previous reports where a top metallic mirror was used, showing the decisive advantage of the present fabrication technique toward the achievement of stimulated effects and polariton lasing with perovskite materials.
authors.affiliation: Laboratoire de Photonique Quantique et Moléculaire (UMR CNRS 8537), École Normale Supérieure de Cachan, 61 Avenue du Président Wilson, 94235 Cachan Cedex, France.
authors.forename: Zheng
authors.initials: Z
authors.lastname: Han
authors.forename: Hai-Son
authors.initials: HS
authors.lastname: Nguyen
authors.forename: Fabien
authors.initials: F
authors.lastname: Boitier
authors.forename: Yi
authors.initials: Y
authors.lastname: Wei
authors.forename: Katia
authors.initials: K
authors.lastname: Abdel-Baki
authors.forename: Jean-Sébastien
authors.initials: JS
authors.lastname: Lauret
authors.forename: Jacqueline
authors.initials: J
authors.lastname: Bloch
authors.forename: Sophie
authors.initials: S
authors.lastname: Bouchoule
authors.forename: Emmanuelle
authors.initials: E
authors.lastname: Deleporte