The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Observing the Intrinsic Linewidth of a Quantum-Cascade Laser: Beyond the Schawlow-Townes Limit
Open accessAbstract
A comprehensive investigation of the frequency-noise spectral density of a free-running midinfrared quantum-cascade laser is presented for the first time. It provides direct evidence of the leveling of this noise down to a white-noise plateau, corresponding to an intrinsic linewidth of a few hundred hertz. The experiment is in agreement with the most recent theory on the fundamental mechanism of line broadening in quantum-cascade lasers, which provides a new insight into the Schawlow-Townes formula and predicts a narrowing beyond the limit set by the radiative lifetime of the upper level.
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Citations
Cites
Theory of the linewidth of semiconductor lasers
Henry, C. (1982) · IEEE Journal of Quantum Electronics · doi:10.1109/jqe.1982.1071522 · Cited by 2,488
Cited by
Quantum cascade lasers: 20 years of challenges
Vitiello, M. S., Scalari, G., Williams, B., & De Natale, P. (2015) · Optics Express · doi:10.1364/oe.23.005167 · Cited by 512
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Metadata
- Authors
- Bartalini, S., Borri, S., Cancio, P., Castrillo, A., Galli, I., Giusfredi, G., Mazzotti, D., Gianfrani, L., & De Natale, P.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2010-02-26
- Volume
- 104
- Issue
- 8
- Pages
- 083904-083904
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2012511802
- Cited by
- 167
- References
- 1
- FWCI
- 9.95
- Type
- journal article
- Language
- en
- Open access
- green
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- The paper
- Bartalini, S., Borri, S., Cancio, P., Castrillo, A., Galli, I., Giusfredi, G., Mazzotti, D., Gianfrani, L., & De Natale, P. (2010). Observing the Intrinsic Linewidth of a Quantum-Cascade Laser: Beyond the Schawlow-Townes Limit. Physical Review Letters. https://doi.org/10.1103/physrevlett.104.083904
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