Terahertz heterodyne detection with silicon field-effect transistors

Glaab, Diana; Boppel, Sebastian; Lisauskas, Alvydas; Pfeiffer, Ullrich; Öjefors, Erik; Roskos, Hartmut G.
January 2010
Applied Physics Letters;1/25/2010, Vol. 96 Issue 4, p042106
Academic Journal
We report on the detection of electromagnetic radiation at 0.65 THz by silicon field-effect transistors operated in heterodyne mode. Aiming at terahertz imaging with numerous pixels in a focal-plane array, we explore the improvement of the dynamic range achieved over power detection when the local-oscillator (LO) power is distributed quasioptically onto all detectors. These consist of resonantly antenna-coupled complementary metal-oxide-semiconductor transistors with a gate length of 0.25 μm, and each has an integrated voltage amplifier. With a LO power of 2 μW per detector, the noise-equivalent power amounts to 8 fW/Hz, leading to an estimated improvement of the dynamic range by 29 dB.


Related Articles

  • Nonorthodox heterodyne electro-optic detection for terahertz optical systems. Darmo, J.; Dietze, D.; Martl, M.; Unterrainer, K. // Applied Physics Letters;4/18/2011, Vol. 98 Issue 16, p161112 

    An electro-optic detector of terahertz electromagnetic waves with boosted performance is presented. The detector utilizes a heterodyne detection technique to achieve orders of magnitude better responsivity compared to a standard detector setup. We prove theoretically as well as demonstrate...

  • The EMIR multi-band mm-wave receiver for the IRAM 30-m telescope. Carter, M.; Lazareff, B.; Maier, D.; Chenu, J.-Y.; Fontana, A.-L.; Bortolotti, Y.; Boucher, C.; Navarrini, A.; Blanchet, S.; Greve, A.; John, D.; Kramer, C.; Morel, F.; Navarro, S.; Peñalver, J.; Schuster, K. F.; Thum, C. // Astronomy & Astrophysics / Astronomie et Astrophysique;Feb2012, Vol. 538, p1 

    Aims. The prime motivation of this project was to design and build a state-of-art mm-wave heterodyne receiver system to enhance the observing throughput of the IRAM 30-m radiotelescope. More specifically, the requirements were ) state-of-art noise performance for spectroscopic observations; ii)...

  • Data Mining the Airwaves. Pierce, Alan // Tech Directions;Dec2004, Vol. 64 Issue 5, p11 

    This article features the Mobiltrak data mining system being used by Westchester, New York-based Yorktown Mitsubishi as its advertising strategy. Data mining often searches databases to find subtle relationships that can lead to profits for a particular business. Every radio and TV contains the...

  • Gain and linearity give active RF mixers the performance edge over passives.  // Electronics Weekly;3/24/2004, Issue 2139, p23 

    Radio frequency (RF) designers have traditionally used passive down-conversion mixers to achieve good signal linearity and spurious performance in receiver design. Integrated RF mixer suppliers such as Maxim, Analog Devices and Linear Technology suggest that there can he disadvantages when using...

  • Development of terahertz mixers and a study of their characteristics. Bozhkov, V. G.; Genneberg, V. A.; Kuzyakov, D. Yu.; Kurkan, K. I.; Fedoseev, L. I. // Radiophysics & Quantum Electronics;Oct/Nov2005, Vol. 48 Issue 10/11, p865 

    We develop terahertz mixers with monolithic integrated circuits containing balanced, series and antiparallel pairs of Schottky diodes. The designs of these mixers and a method for studying their parameters are described. The best results are obtained for the antiparallel diode pair. In this...

  • A fast vectorial network analyser for frequencies up to 4 GHz. Schulte, B.; Musch, T.; Schiek, B. // Advances in Radio Science;2004, Vol. 2, p13 

    A fast four channel network analyser is introduced to measure S-parameters in a frequency range from 10MHz to 4GHz. The measurement period of this kind of network analyser is short in comparison with a conventional one, which becomes possible by using highly linear analogue frequency ramps,...

  • Frequency discriminators for the characterization of narrow-spectrum heterodyne beat signals: Application to the measurement of a sub-hertz carrier-envelope-offset beat in an optical frequency comb. Schilt, Stéphane; Bucalovic, Nikola; Tombez, Lionel; Dolgovskiy, Vladimir; Schori, Christian; Di Domenico, Gianni; Zaffalon, Michele; Thomann, Pierre // Review of Scientific Instruments;Dec2011, Vol. 82 Issue 12, p123116 

    We describe a radio-frequency (RF) discriminator, or frequency-to-voltage converter, based on a voltage-controlled oscillator phase-locked to the signal under test, which has been developed to analyze the frequency noise properties of an RF signal, e.g., a heterodyne optical beat signal between...

  • A phase-sensitive technique to measure small changes in laser frequency: application to measure the shift and broadening of a saturated absorption line of OsO4. Siemsen, K. J.; Bernard, J. E. // Applied Physics B: Lasers & Optics;Aug2005, Vol. 81 Issue 4, p497 

    A phase-sensitive technique was used to measure the sensitivity to operating conditions of the output frequency of a highly stable carbon dioxide laser, which operated on the 10-μmm R(0) transition (28.8 THz) and was locked to the saturated absorption of the Q(15) transition of OsO4. Periodic...

  • heterodyne effect.  // Hutchinson Dictionary of Scientific Biography;2005, p1 

    Superimposition of two waves of different frequency in a radio receiver, one of which is being received, the other transmitted within the device itself, producing an intermediate frequency that can be demodulated.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics