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DG Revin, M Hemingway, Y Wang, JW Cockburn… - NATURE … - core.ac.uk
Results Pulsed operation under resonant modulation. A 4.5-mm-long, 9-μm-wide λB5. 25μm
buried heterostructure QCL (ref. 12), with both facets having anti-reflection coatings is used …