CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume PC12430 > Article
Presentation
17 March 2023 Terahertz detectorless hyperspectral near-field imaging and spectroscopy exploiting QCL frequency combs
Valentino Pistore, Eva A. A. Pogna, Leonardo Viti, Lianhe Li, Giles Davies, Edmund H. Linfield, Miriam S. Vitiello
Author Affiliations +
Proceedings Volume PC12430, Quantum Sensing and Nano Electronics and Photonics XIX; PC124300C (2023) https://doi.org/10.1117/12.2650684
Event: SPIE OPTO, 2023, San Francisco, California, United States
Abstract
We demonstrate the first-ever hyperspectral s-SNOM imaging system, providing 160nm spatial resolution, coherent detection of multiple phase-locked modes and mapping of the THz optical response of nanoscale materials such as topological insulators in the 2.29-3.60 THz range with noise-equivalent-power ~400pW/√Hz, relying on a 6mW comb-emitting THz QCL. We provide near-field images of Bi2Se3 and Bi2Te3 and their spectroscopic characterization in a >1 THz optical bandwidth extracting their optical contrast response through the application of the synthetic optical holography technique.
Conference Presentation
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Valentino Pistore, Eva A. A. Pogna, Leonardo Viti, Lianhe Li, Giles Davies, Edmund H. Linfield, and Miriam S. Vitiello "Terahertz detectorless hyperspectral near-field imaging and spectroscopy exploiting QCL frequency combs", Proc. SPIE PC12430, Quantum Sensing and Nano Electronics and Photonics XIX, PC124300C (17 March 2023); https://doi.org/10.1117/12.2650684
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
Imaging spectroscopy
Near field
Quantum cascade lasers
Terahertz radiation
Near field optics
Sensors
Hyperspectral imaging
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top