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Spectral engineering of terahertz quantum cascade lasers using focused ion beam etched photonic lattices |
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| Authors: | Chakraborty S. Chakraborty T. Khanna S.P. Linfield E.H. Davies A.G. Fowler J. Worrall C.H. Beere H.E. Ritchie D.A. |
| Affiliation: | Sch. of Electron. & Electr. Eng., Univ. of Leeds, UK; |
| Abstract: | Focused ion beam etching has been used to introduce one-dimensional photonic lattices, of periods 9.11, 9.24, 9.44 /spl mu/m, between the cleaved facets of three 4.44 THz Fabry-Perot quantum cascade lasers. Singlemode lasing has been achieved at precisely defined wavelengths of 67.59, 68.48, 70.00 /spl mu/m, respectively. |
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