Title :
Spectral engineering of terahertz quantum cascade lasers using focused ion beam etched photonic lattices
Author :
Chakraborty, S. ; Chakraborty, T. ; Khanna, S.P. ; Linfield, E.H. ; Davies, A.G. ; Fowler, J. ; Worrall, C.H. ; Beere, H.E. ; Ritchie, D.A.
Author_Institution :
Sch. of Electron. & Electr. Eng., Univ. of Leeds, UK
fDate :
3/30/2006 12:00:00 AM
Abstract :
Focused ion beam etching has been used to introduce one-dimensional photonic lattices, of periods 9.11, 9.24, 9.44 μm, 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 μm, respectively.
Keywords :
focused ion beam technology; photonic crystals; quantum cascade lasers; sputter etching; submillimetre wave lasers; 1D photonic lattices; 4.44 THz; 67.59 micron; 68.48 micron; 70 micron; 9.11 micron; 9.24 micron; 9.44 micron; Fabry-Perot quantum cascade lasers; focused ion beam etching; singlemode lasing; spectral engineering; terahertz quantum cascade lasers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20064168
