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Ralf Zimmermann

Fast Active THz Cameras with Ranging Capabilities
2009 · Christian am Weg, Wolff von Spiegel, et al. · Journal of Infrared Millimeter and Terahertz Waves · 85
Microwave Radiometer for Cloud Carthography: A 22‐channel ground‐based microwave radiometer for atmospheric research
2001 · Susanne Crewell, Harald Czekala, et al. · Radio Science · 60
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Progress toward solid-state local oscillators at 1 THz
1996 · T.W. Crowe, T.C. Grein, et al. · IEEE Microwave and Guided Wave Letters · 49
Illumination Aspects in Active Terahertz Imaging
2010 · Wolff von Spiegel, Christian am Weg, et al. · IEEE Transactions on Microwave Theory and Techniques · 36
An all solid-state 640 GHz subharmonic mixer
2002 · I. Mehdi, P.H. Siegel, et al. · IEEE MTT-S International Microwave Symposium digest · 32
An All Solid-State 1 THz Radiometer For Space Applications
1995 · R. Zimmermann, T. Priya Rose, et al. · Softwaretechnik-Trends · 29
Fast active THz camera with range detection by frequency modulation
2009 · C. am Weg, W. von Spiegel, et al. · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 16
A 640 GHz planar-diode fundamental mixer/receiver
2002 · P.H. Siegel, I. Mehdi, et al. · IEEE MTT-S International Microwave Symposium digest · 16
Submicron Nb-Al/Al oxide-Nb tunnel junctions sandwiched between Al films
1996 · D. Maier, H. Rothermel, et al. · Physica C Superconductivity · 12
Substrateless Schottky Diodes for THz Applications
1997 · Chih-I Lin, A. Simon, et al. · TUbilio (Technical University of Darmstadt) · 10
Fast active THz camera with range detection by frequency modulation
2008 · C. am Weg, W. von Spiegel, et al. · International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) · 7
Fast active THz-camera with global illumination
2009 · C. am Weg, W. v. Spiegel, et al. · International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) · 6
High efficiency frequency multipliers using substrateless Schottky diodes
2002 · A. Simon, Chih-I Lin, et al. · IEEE International Conference on Terahertz Electronics (THz) · 6
Active THz imaging system with improved frame rate
2009 · W. von Spiegel, C. am Weg, et al. · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 5
Planar Schottky diodes for submillimeter wave applications
2002 · Chih-I Lin, A. Simon, et al. · IEEE International Conference on Terahertz Electronics (THz) · 5
183 GHz Mixer on InGaAs Schottky Diodes
2010 · Ion Oprea, Achim Walber, et al. · 4
Quasioptical system design
2009 · C. am Weg, W. von Spiegel, et al. · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 4
Ultrawideband THz detector based on a zero-bias Schottky diode
2008 · Oleg Cojocari, C. Sydlo, et al. · Softwaretechnik-Trends · 3
Design and Characterization of Schottky-Structures for THz-Applications
2007 · O. Cojocari, I. Oprea, et al. · Frequenz · 3
Fabrication and Optimisation of Planar Schottky Diodes
1997 · A. Simon, C. I. Lin, et al. · 3
Correction to "Progress toward solid-state local oscillators at 1 THz"
1996 · T.W. Crowe, T.C. Grein, et al. · IEEE Microwave and Guided Wave Letters · 2
Active terahertz imaging with high acquisition rates and its application for moisture sensing
2009 · Wolff von Spiegel, B. Hils, et al. · 1
THz Schottky diodes on epitaxial AlGaAs-membrane
2007 · O. Cojocari, I. Oprea, et al. · International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) · 1
Coherent terahertz imaging with synchronized distributed-feedback diode lasers
2009 · F. Friederich, T. Loffler, et al. · International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)
Development of a hybrid THz camera using synchronized two-color laser radiation
2008 · F. Friederich, F. Meng, et al. · International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)
Works count: 26
Citation count: 395
H-index: 10
I10-index: 10
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