CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 11723 > Article
Presentation
12 April 2021 Active tunable MWIR filters: phase-change tunable filters for MWIR imaging based on GeSbTe-integrated metasurfaces
Hyun Jung Kim, Matthew Julian, Calum Williams, Stephen Borg, David Bombara, William Humphreys
Author Affiliations +
Proceedings Volume 11723, Image Sensing Technologies: Materials, Devices, Systems, and Applications VIII; 1172304 (2021) https://doi.org/10.1117/12.2586511
Event: SPIE Defense + Commercial Sensing, 2021, Online Only
Abstract
The mid-wave infrared (MWIR) waveband (3-5 µm) contains numerous invaluable spectral /thermal signatures. Tunable MWIR filters are thus highly desirable in a variety of imaging and spectroscopic applications. We introduce phase-change tunable filters (PCTFs) which enable actively tunable spectral filtering across the MWIR waveband from a single solid-state element. This is achieved through the integration of the chalcogenide phase-change material GeSbTe (GST) into a plasmonic nanohole metasurface. We demonstrate polarization-insensitive PCTFs with >70% transmittance, 60nm bandwidth, and high-speed switching (MHz-GHz) across the MWIR waveband using a nanosecond laser pulse. We further show PCTF-based multispectral thermal imaging and dynamic gas sensing.
Conference Presentation
© (2021) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Hyun Jung Kim, Matthew Julian, Calum Williams, Stephen Borg, David Bombara, and William Humphreys "Active tunable MWIR filters: phase-change tunable filters for MWIR imaging based on GeSbTe-integrated metasurfaces", Proc. SPIE 11723, Image Sensing Technologies: Materials, Devices, Systems, and Applications VIII, 1172304 (12 April 2021); https://doi.org/10.1117/12.2586511
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
INSTITUTIONAL
Select your institution to access the SPIE Digital Library.
SELECT YOUR INSTITUTION
PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
PERSONAL SIGN IN
No SPIE Account? Create one
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 PRESENTATION
WATCH
PRESENTATION SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
KEYWORDS
Tunable filters
Mid-IR
Image filtering
Optical filters
Plasmonics
Refractive index
Solid state electronics
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top