Print Email Facebook Twitter Stabilized hot electron bolometer heterodyne receiver at 2.5?THz Title Stabilized hot electron bolometer heterodyne receiver at 2.5?THz Author Hayton, D.J. Gao, J.R. Kooi, J.W. Ren, Y. Zhang, W. De Lange, G. Faculty Applied Sciences Department QN/Quantum Nanoscience Date 2012-02-21 Abstract We report on a method to stabilize a hot electron bolometer (HEB) mixer at 2.5 THz. The technique utilizes feedback control of the local oscillator (LO) laser power by means of a swing-arm actuator placed in the optical beam path. We demonstrate that this technique yields a factor of 50 improvement in the spectroscopic Allan variance time which is shown to be over 30?s in a 12?MHz noise fluctuation bandwidth. Furthermore, broadband signal direct detection effects may be minimized by this technique. The technique is versatile and can be applied to practically any local oscillator at any frequency. Subject bolometersfluctuationshot carriersreceivers To reference this document use: http://resolver.tudelft.nl/uuid:a96438a9-ba9c-4a36-b7c7-ed1eb050f5b9 DOI https://doi.org/10.1063/1.3688032 Publisher American Institute of Physics ISSN 0003-6951 Source http://apl.aip.org/resource/1/applab/v100/i8/p081102_s1 Source Applied Physics Letters, 100 (8), 2012 Part of collection Institutional Repository Document type journal article Rights © 2012 The Author(s)American Institute of Physics Files PDF Gao_2012.pdf 673.82 KB Close viewer /islandora/object/uuid:a96438a9-ba9c-4a36-b7c7-ed1eb050f5b9/datastream/OBJ/view