Conference item
Topological Dirac semi-metals as novel, optically-switchable, helicity-dependent terahertz sources
- Abstract:
- The generation and control of terahertz pulses is vital for realizing the potential of terahertz radiation in several sectors, including 6G communication, security and imaging. In this work, we present the topological Dirac semimetal cadmium arsenide as a novel helicity-dependent terahertz source. We show both broadband (single-cycle) and narrowband (multi-cycle) terahertz pulses upon near-infrared photoexcitation at oblique incidence. By varying the incident angle of the photoexcitation pulse, control of the emission frequency can also be achieved, providing a candidate for a tuneable narrowband terahertz source.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
Actions
Access Document
- Files:
-
-
(Preview, Accepted manuscript, pdf, 312.7KB, Terms of use)
-
- Publisher copy:
- 10.1109/IRMMW-THz50927.2022.9895566
Authors
- Publisher:
- IEEE
- Host title:
- 2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz)
- Article number:
- 9895566
- Publication date:
- 2022-09-26
- Acceptance date:
- 2021-12-31
- Event title:
- 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz 2022)
- Event location:
- Delft, Netherlands
- Event website:
- https://www.irmmw-thz2022.tudelft.nl/
- Event start date:
- 2022-08-24
- Event end date:
- 2022-09-02
- DOI:
- EISSN:
-
2162-2035
- ISSN:
-
2162-2027
- EISBN:
- 9781728194271
- ISBN:
- 9781728194288
- Language:
-
English
- Keywords:
- Pubs id:
-
1286930
- Local pid:
-
pubs:1286930
- Deposit date:
-
2022-12-24
Terms of use
- Copyright holder:
- IEEE
- Copyright date:
- 2022
- Rights statement:
- © 2022 IEEE.
- Notes:
- This is the accepted manuscript version of the paper. The final version is available online from IEEE at: https://doi.org/10.1109/IRMMW-THz50927.2022.9895566
If you are the owner of this record, you can report an update to it here: Report update to this record