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

Optimizing photonic ring-resonator filters for OH-suppressed near-infrared astronomy

Abstract

Near-infrared wavelength observations are crucial for understanding numerous fields of astrophysics, such as supernova cosmology and positronium annihilation detection. However, current ground-based observations suffer from an enormous background due to OH emission in the upper atmosphere. One promising way to solve this problem is to use ring-resonator filters to suppress OH emission lines. In this work, we discuss our optimization of ring-resonator filter performance from five perspectives: resonance wavelength matching, polarization-independent operation, low insertion loss, low-loss coupling to astronomical instruments, and broadband operation. In the end, we discuss next steps needed for reliable supernova and positronium observations, thus providing a roadmap for future advances in near-infrared astronomy.

© 2021 Optical Society of America

Full Article  |  PDF Article
More Like This
Photonic ring resonator filters for astronomical OH suppression

S. C. Ellis, S. Kuhlmann, K. Kuehn, H. Spinka, D. Underwood, R. R. Gupta, L. E. Ocola, P. Liu, G. Wei, N. P. Stern, J. Bland-Hawthorn, and P. Tuthill
Opt. Express 25(14) 15868-15889 (2017)

Complex phase masks for OH suppression filters in astronomy: part I: design

Aashia Rahman, Kalaga Madhav, and Martin M. Roth
Opt. Express 28(19) 27797-27807 (2020)

Seeking celestial positronium with an OH-suppressed diffraction-limited spectrograph

Gordon Robertson, Simon Ellis, Qingshan Yu, Joss Bland-Hawthorn, Christopher Betters, Martin Roth, and Sergio Leon-Saval
Appl. Opt. 60(19) D122-D128 (2021)

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 (10)

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 (4)

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

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved