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Ridge Resonance in Silicon Photonics Harnessing Bound States in the Continuum.
- Source :
-
Laser & Photonics Reviews . Oct2019, Vol. 13 Issue 10, pN.PAG-N.PAG. 1p. - Publication Year :
- 2019
-
Abstract
- The theoretical analysis and experimental demonstration of a waveguide resonator are presented based on bound states in the continuum in an integrated photonic chip platform. The continuum has the form of a collimated beam of light which is confined vertically in a transverse electric (TE) mode of a silicon slab. The bound state is a discrete transverse‐magnetic (TM)‐like mode of a ridge on the silicon slab. The coupling between the slab and ridge modes results in a single sharp resonance at the wavelength where they phase match. This phenomenon is experimentally demonstrated on a silicon photonic chip using foundry‐compatible parameters and it is interfaced on‐chip to standard single‐mode silicon nanowire waveguides. The fabricated chip exhibits a single sharp resonance near 1550 nm with a line width of a few nanometers, an extinction ratio of 25 dB, and a thermal stability of 19.5 pm °C−1. It is believed that the demonstration of a resonance operating near a bound state in the continuum realized using guided wave components will form the basis of a new approach to on‐chip wavelength filtering and sensing applications. [ABSTRACT FROM AUTHOR]
- Subjects :
- *BOUND states
*RESONANCE
*PHOTONICS
*SILICON
*SILICON nanowires
*WAVEGUIDES
*NANOWIRES
Subjects
Details
- Language :
- English
- ISSN :
- 18638880
- Volume :
- 13
- Issue :
- 10
- Database :
- Academic Search Index
- Journal :
- Laser & Photonics Reviews
- Publication Type :
- Academic Journal
- Accession number :
- 139135635
- Full Text :
- https://doi.org/10.1002/lpor.201900035