Higher-order optical resonance node detection of integrated disk microresonator |
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Authors: | Ostrowski M Pignalosa P Smith H Yi Y |
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Institution: | New York University, New York City, New York 10012, USA. |
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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. |
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