Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Near-infrared spectroscopy using period-chirped Si/SiO/SiO2-based guided mode resonance filter

Not Accessible

Your library or personal account may give you access

Abstract

We demonstrate a Si/SiO/SiO2-based period-chirped guided mode resonance (GMR) filter to discriminate telecom o-band wavelengths by spatially resolved horizontal movement. Continuously period-chirped silicon gratings were fabricated by using a Lloyd’s laser interferometer with a convex mirror. Due to the large waveguide effective index, the GMR filter can be realized with a short grating period, thus enabling a slow grating period transition along the sample position and high optical resolution in wavelength discrimination. Depositing a SiO/SiO2 stack on top of silicon gratings enables a narrowband GMR filter with a linewidth of 1–1.5 nm over a wavelength range of 1260–1360 nm. By using the chirped GMR filter as a dispersive device, the optical spectra of a near-infrared broadband light source are reconstructed. An optimized aspheric mirror is proposed to further improve the linearity of chirped gratings. Such a period-chirped GMR filter is promising for compact on-chip spectroscopy and sensing applications.

© 2022 Optica Publishing Group

Full Article  |  PDF Article
More Like This
Optical spectrometer based on continuously-chirped guided mode resonance filter

Yung-Jr Hung, Chia-Wei Kao, Tzu-Chieh Kao, Chia-Wei Huang, Jia-Jin Lin, and Chuan-Ci Yin
Opt. Express 26(21) 27515-27527 (2018)

Infrared spectral filter based on all-semiconductor guided-mode resonance

Clément Maës, Grégory Vincent, Fernando González-Posada Flores, Laurent Cerutti, Riad Haïdar, and Thierry Taliercio
Opt. Lett. 44(12) 3090-3093 (2019)

Broadband on-chip near-infrared spectroscopy based on a plasmonic grating filter array

Erwen Li, Xinyuan Chong, Fanghui Ren, and Alan X. Wang
Opt. Lett. 41(9) 1913-1916 (2016)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Data availability

Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (7)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (1)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Metrics

Select as filters


Select Topics Cancel
© Copyright 2022 | Optica Publishing Group. All Rights Reserved