=== Kunstig ===
I 2012 var følgende kendte kilder til terahertz stråling:
* [[gyrotron]]en
* [[Schottky-diode]] multiplikatorer<ref>Virginia Diodes [http://vadiodes.com/index.php/en/products/multipliers Virginia Diodes Multipliers] {{Webarchive|url=https://web.archive.org/web/20140315214429/http://vadiodes.com/index.php/en/products/multipliers |date=15. marts 2014 }}</ref>
* varaktor ([[varaktordiode]]) multiplikatorer
* [[quantum cascade laser]]<ref name=nature_kohler_2002>
{{Cite journal
| doi = 10.1038/417156a
| volume = 417
| pages = 156–159
| last = Köhler
| first = Rüdeger
|author2=Alessandro Tredicucci |author3=Fabio Beltram |author4=Harvey E. Beere |author5=Edmund H. Linfield |author6=A. Giles Davies |author7=David A. Ritchie |author8=Rita C. Iotti |author9=Fausto Rossi
| title = Terahertz semiconductor-heterostructure laser
| journal = Nature
| date = 2002
| pmid=12000955
|bibcode = 2002Natur.417..156K
| issue = 6885 }}
</ref><ref name=lpr_scalari_2009>
{{Cite journal
| doi = 10.1002/lpor.200810030
| volume = 3
| pages = 45–66
| last = Scalari
| first = G.
|author2=C. Walther |author3=M. Fischer |author4=R. Terazzi |author5=H. Beere |author6=D. Ritchie |author7=J. Faist
 | title = THz and sub-THz quantum cascade lasers
| journal = Laser & Photonics Review
| date = 2009
}}
</ref><ref name=apl_lee_2006>
{{Cite journal
| doi = 10.1063/1.2360210
| volume = 89
| issue = 14
| pages = 141125
| last = Lee
| first = Alan W. M.
|author2=Qi Qin |author3=Sushil Kumar |author4=Benjamin S. Williams |author5=Qing Hu |author6=John L. Reno
 | title = Real-time terahertz imaging over a standoff distance (>25 meters)
| journal = Appl. Phys. Lett.
| date = 2006
|bibcode = 2006ApPhL..89n1125L }}
</ref><ref name = oe_fathololoumi_2012>
{{Cite journal
| doi = 10.1364/OE.20.003866
| volume = 20
| issue = 4
| pages = 3866–3876
| last = Fathololoumi | first = S.
| first2 = E. | last2 = Dupont
| first3 = C. W. I. | last3 = Chan
| first4 = Z. R. | last4 = Wasilewski
| first5 = S. R. | last5 = Laframboise
| first6 = D. | last6 = Ban
| first7 = A. | last7 = Matyas
| first8 = C. | last8 = Jirauschek
| first9 = Q. | last9 = Hu
| first10 = H. C. | last10 = Liu
| title = Terahertz quantum cascade lasers operating up to ~200 K with optimized oscillator strength and improved injection tunneling
| journal = Optics Express
| access-date = 21. marts 2012
| date = 13. februar 2012
| url = http://www.opticsexpress.org/abstract.cfm?URI=oe-20-4-3866
| bibcode = 2012OExpr..20.3866F
| pmid = 22418143 }}
</ref>
* [[fri elektron laser]] (''FEL'')
* [[synkrotron]] kilder
* [[photomixing]] kilder
Samfund Fysik Teknologi