Nanoscale graphene/Ge wigglers as building blocks for THz sources
Source abstract
Abstract
We demonstrate that wrinkled graphene on Ge with nanoscale period and amplitude holds the potential to generate cyclotron-like radiation in the THz range of the electromagnetic spectrum. We show nanoscale graphene wigglers fabricated by release and transfer of atomically thin sheets to one-dimensional Ge gratings. We present a simple time of flight and interference model to calculate the radiated frequency and output power for the fabricated devices. We establish, theoretically, that an output power of ∼ 0.1-7 mW can be obtained from graphene/Ge wigglers with period not exceeding 85 nm, and amplitude-to-period ratio in the range of 1.4 to 10.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Terahertz technology and applications · Superconducting and THz Device Technology · Metamaterials and Metasurfaces Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Electrical and Computer Engineering, University of New Mexico 1 , Albuquerque, NM 87131, United States
Center for High Technology Materials, University of New Mexico 2 , Albuquerque, NM 87106, United States
Department of Materials Science and Engineering, University of Wisconsin-Madison 3 , Madison, WI 53706, United States
Funding
U.S. Department of Energy · DOD | USAF | AFMC | Air Force Office of Scientific Research
References (24)
Show source-provided references
1. Journal of Optics · 2016 · 1810.1088/2040-8978/18/9/093004 ↗
2. Science · 2007 · 316 · 6410.1126/science.1141012 ↗
3. Journal of Physics D-Applied Physics · 2014 · 4710.1088/0022-3727/47/37/374001 ↗
4. United States Pat., US9324804 B2.
5. Appl Phys Lett · 2008 · 9210.1063/1.2919051 ↗
6. Sci Rep-Uk · 2015 · 510.1038/srep16059 ↗
7. IEEE J Solid-St Circ · 2012 · 47 · 303210.1109/jssc.2012.2217853 ↗
8. Appl Phys Lett · 2010 · 9610.1063/1.3360881 ↗
9. 1977
10. ACS Nano · 2014 · 8 · 1023710.1021/nn503381m ↗
11. Carbon · 2016 · 100 · 110.1016/j.carbon.2015.12.089 ↗
12. Carbon · 2013 · 65 · 3510.1016/j.carbon.2013.07.088 ↗
13. Journal of Physics-Condensed Matter · 2015 · 2710.1088/0953-8984/27/22/223201 ↗
14. Annalen Der Physik · 1900 · 1 · 56610.1002/andp.19003060312 ↗
15. ACS Appl Mater Inter · 2017 · 9 · 17630
16. 2014
17. 2000 · 81
18. Appl Phys Lett · 2010 · 9710.1063/1.3483130 ↗
19. Journal of Physics D-Applied Physics · 2017 · 5010.1088/1361-6463/50/4/043001 ↗
20. Appl Phys Lett · 2014 · 10510.1063/1.4904264 ↗
21. 2015
22. Chemistry of Materials · 2010 · 22 · 411110.1021/cm101121c ↗
23. Journal of Vacuum Science & Technology B · 2010 · 28 · 76310.1116/1.3455498 ↗
24. Nanotechnology · 2008 · 1910.1088/0957-4484/19/34/345301 ↗