Journal
NATURE COMMUNICATIONS
Volume 3, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/ncomms2048
Keywords
-
Categories
Funding
- EC grant [RII3-CT-2003-506350]
- COST Action [MP0902-COINAPO]
- Ente Cassa di Risparmio di Firenze
- Ente Cassa di Risparmio di Firenze and by Regione Toscana, through the project CTOTUS, in the framework of POR-CReO FESR
- Italian Ministry of Education, University and Research (MIUR) through the program 'FIRB-Futuro in Ricerca [RBFR10LULP]
- EPSRC [EP/D025532/1, EP/J017671/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/J017671/1, EP/D025532/1] Funding Source: researchfish
Ask authors/readers for more resources
Optical frequency comb synthesizers have represented a revolutionary approach to frequency metrology, providing a grid of frequency references for any laser emitting within their spectral coverage. Extending the metrological features of optical frequency comb synthesizers to the terahertz domain would be a major breakthrough, due to the widespread range of accessible strategic applications and the availability of stable, high-power and widely tunable sources such as quantum cascade lasers. Here we demonstrate phase-locking of a 2.5 THz quantum cascade laser to a free-space comb, generated in a LiNbO3 waveguide and covering the 0.1-6 THz frequency range. We show that even a small fraction (< 100 nW) of the radiation emitted from the quantum cascade laser is sufficient to generate a beat note suitable for phase-locking to the comb, paving the way to novel metrological-grade terahertz applications, including high-resolution spectroscopy, manipulation of cold molecules, astronomy and telecommunications.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available