Scalable high-precision trimming of photonic resonances by polymer exposure to energetic beams

• Verfasst von: Farmakidis, Nikolaos [VerfasserIn]
• Verfasst von: Yu, Hao [VerfasserIn]
• Verfasst von: Lee, June Sang [VerfasserIn]
• Verfasst von: Feldmann, Johannes [VerfasserIn]
• Verfasst von: Wang, Mengyun [VerfasserIn]
• Verfasst von: He, Yuhan [VerfasserIn]
• Verfasst von: Aggarwal, Samarth [VerfasserIn]
• Verfasst von: Dong, Bowei [VerfasserIn]
• Verfasst von: Pernice, Wolfram [VerfasserIn]
• Verfasst von: Bhaskaran, Harish [VerfasserIn]
• Titel: Scalable high-precision trimming of photonic resonances by polymer exposure to energetic beams
• Verf.angabe: Nikolaos Farmakidis, Hao Yu, June Sang Lee, Johannes Feldmann, Mengyun Wang, Yuhan He, Samarth Aggarwal, Bowei Dong, Wolfram H.P. Pernice, and Harish Bhaskaran
• E-Jahr: 2023
• Jahr: 14 June 2023
• Umfang: 7 S.
• Illustrationen: Illustrationen
• Fussnoten: Gesehen am 21.07.2023
• Titel Quelle: Enthalten in: Nano letters
• Ort Quelle: Washington, DC : ACS Publ., 2001
• Jahr Quelle: 2023
• Band/Heft Quelle: 23(2023), 11 vom: Juni, Seite 4800-4806
• ISSN Quelle: 1530-6992
• DOI: doi:10.1021/acs.nanolett.3c00220
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1853236675

Abstract

Integrated photonic circuits (PICs) have seen an explosion in interest, through to commercialization in the past decade. Most PICs rely on sharp resonances to modulate, steer, and multiplex signals. However, the spectral characteristics of high-quality resonances are highly sensitive to small variations in fabrication and material constants, which limits their applicability. Active tuning mechanisms are commonly employed to account for such deviations, consuming energy and occupying valuable chip real estate. Readily employable, accurate, and highly scalable mechanisms to tailor the modal properties of photonic integrated circuits are urgently required. Here, we present an elegant and powerful solution to achieve this in a scalable manner during the semiconductor fabrication process using existing lithography tools: by exploiting the volume shrinkage exhibited by certain polymers to permanently modulate the waveguide’s effective index. This technique enables broadband and lossless tuning with immediate applicability in wide-ranging applications in optical computing, telecommunications, and free-space optics.