title: Higher-order optical resonance node detection of integrated disk microresonator.
abstract: We have demonstrated higher-order optical resonance node detection by using an integrated disk microresonator from through port of the coupling bus waveguide. In addition to the fundamental mode, the disk resonator has higher-order whispering gallery modes. The excited second-order higher-order mode has a node at the position where the electromagnetic energy of the fundamental mode is close to a maximum. This high resolution measurement of optical resonance mode profile has a variety of applications for optical sensing and detection. The self-referencing characteristics of the two optical resonance modes have potential to achieve optical detection independent of external perturbation, such as temperature change.
authors.affiliation: New York University, New York City, New York 10012, USA.
authors.forename: M
authors.initials: M
authors.lastname: Ostrowski
authors.forename: P
authors.initials: P
authors.lastname: Pignalosa
authors.forename: H
authors.initials: H
authors.lastname: Smith
authors.forename: Y
authors.initials: Y
authors.lastname: Yi