Print Email Facebook Twitter A 2 × 2 array receiver at 1.4 THz based on HEB mixers and a Fourier phase grating local oscillator Title A 2 × 2 array receiver at 1.4 THz based on HEB mixers and a Fourier phase grating local oscillator Author Liu, X.X. Hayton, D.J. Luo, Y.C. Wei, L. Vercruyssen, N. Gao, J.R. Groppi, C. Faculty Applied Sciences Department QN/Quantum Nanoscience Date 2015-12-31 Abstract We report on realization of a 2 × 2 NbN hot electron bolometer (HEB) array receiver using multiple local oscillator (LO) beams that are obtained from a Fourier phase grating mirror. The grating splits a 1.4 THz single beam into four uniform sub-beams. Two 50mm lenses are applied to collimate each beam in order to achieve a spacing of 12mm between them. The LO power in each beam is shown to be enough to fully pump the HEB mixer elements. The IV curves, noise temperature and IF bandwidth for each pixel is then characterized. To reference this document use: http://resolver.tudelft.nl/uuid:ba10b1b8-8956-4a85-82fd-a1b8d59138dd Publisher International Symposium on Space Terahertz Technology (ISSTT) ISBN 978-1-5108-0933-8 Source ISSTT 2015: Proceedings of the 26th International Symposium on Space Terahertz Technology, Cambridge, USA, 16-18 March 2015 Part of collection Institutional Repository Document type conference paper Rights (c) 2015 The Authors Files PDF 323307.pdf 812.25 KB Close viewer /islandora/object/uuid:ba10b1b8-8956-4a85-82fd-a1b8d59138dd/datastream/OBJ/view