Hans Jürgen Schmitt
Hans Jürgen Schmitt (born August 3, 1930 in Dortmund ; † May 25, 2014 in Aachen ) was a German physicist and professor of high frequency technology at RWTH Aachen University from 1980.
Life
Hans Jürgen Schmitt grew up in Berlin. He studied physics at the University of Göttingen , where he received his diploma in 1954 and 1955, when Erwin Meyer in the field of high frequency technology with a thesis on microwave absorber doctorate . Then he became an assistant professor at the Harvard University in the United States . The main research areas were antenna technology and electromagnetics. From 1963 to 1965 he worked at the Sperry Rand Research Center.
In 1965 Schmitt moved to Hamburg to the Philips Research Laboratory in Vogt-Kölln-Straße. From 1968 he headed the research department for applied physics with the main areas of work laser optics, solid state physics and microwave technology.
In 1980 Schmitt became professor and head of the Institute for High Frequency Technology at RWTH Aachen University. The main research areas there were optical communication, optical sensors, optical measurements and microwave technology. He was also involved in international exchanges, especially with India and China. In 1996 Schmitt retired .
From 1981 to 1996 he was a lecturer at the German National Academic Foundation .
Schmitt was married and had three daughters and a son.
research
- 1959: Back-scattering measurements with a space-separation method
- 1960: Transients in cylindrical antennae
- 1961: The Transient Response of Linear Antennas and Loops
- 1964: Plasma Diagnostics with Short Electromagnetic Pulses
- 1975: Head of the "European Microwave Conference" in Hamburg
- 1977: Data Handling and Recording by Laser
- 1981: Image storage in crystals
- 1987: Optical circulators and isolators - magnetic components for optical communication technology
- 1994: Optical sensors for medical diagnostics
- 2008: History of Electroencephalography
Participation in patents (selection)
Schmitt was involved in around 25 patents, including:
- 1955: Resonance absorber for absorbing electromagnetic centimeter waves
- 1957: Dielectric constant of barium titanate at 10 GHz. Journal of Applied Physics 9 (3) (1957)
- 1980: Record carrier for deformation images
- 1985: Magneto-optical waveguide structure with artificial optical anisotropy
- 1986: Procedure for the control of optical fiber end faces
- 1987: Magneto-optical waveguide device with artificial optical anisotropy
- 1988: Electrically controllable fiber optic switch
- 1988: Procedure for the control of optical fiber end faces
- 1988: Measurement and control system for a fiber optic splicer
- 1989: Non-reciprocal optical component, especially for use as an isolator or circulator
- 1990: Planar optical isolator
- 1990: Cavity Resonator
- 1993: Non-invasive detector of variations in blood vol. or pressure - uses microprocessor and electronic pump controller for computation and display of incremental volume of exercised limb
Awards and memberships (selection)
- 1961: Guggenheim Fellow
- 1979: Fellow of the Institute of Electrical and Electronics Engineers (IEEE) for his research in the field of microwave technology
- 1994: Assessor in the Association of German Electrical Engineers
- 2004: Larry K. Wilson Transnational Award for his honorary work at the IEEE
Publications (selection)
Schmitt was the author and co-author of more than 200 scientific articles, including:
- 1956: Broadband resonance absorber for electromagnetic centimeter waves , Z. Angew. Physik 8, 373 (1956).
- 1957: Dielectric constant of barium titanate at 10 GHz. Journal of Applied Physics 9 (3) (1957) 107-111.
- 1959: Reflection of electromagnetic waves from sound waves
- 1960: Electromagnetic Reflection from Sound Waves
- 1962: King, RW, & Schmitt, HJ: The transient response of linear antennas and loops. Antennas and Propagation, IRE Transactions on, 10 (3), 222-228. (1962)
- 1964: Electromagnetic Reflection from Sound Waves. II
- 1965: HJ Schmitt, Gerald Meltz, Paul J. Freyheit: Gyrotropic Resonances in Afterglow Plasmas. Physical Review 139.5A: A1432. (1965)
- 1965: HJ Schmitt, G. Meltz, PJ Freyheit: Gyrotropic Resonances in Afterglow Plasmas. In: Physical Review. 139, 1965, S. A1432, doi : 10.1103 / PhysRev.139.A1432 .
- 1973: Horst Dötsch, Hans Jürgen Schmitt, Jürgen Müller: Detection and generation of magnetic bubble domains using ferrimagnetic resonance. Applied Physics Letters 11/23: 639-641. (1973)
- 1977: Data Handling and Recording by Laser. In: Optica Acta: International Journal of Optics. 24, 1977, pp. 407-412, doi : 10.1080 / 713819563
- 1981: Image storage in crystals. In: Physics in Our Time. 12, 1981, pp. 3-8, doi : 10.1002 / piuz.19810120103 .
- 1992: Forst, C .; Kalkert, P .; Schmitt, HJ: High-Efficiency KU-Band SSB Modulator for Pulsed IR Laser Radiation , Microwave Conference 1992. 22nd European, Pages: 707-711, (1992) doi : 10.1109 / EUMA.1992.335789
- 1997: The Rise and Fall of the Vacuum-Tube , 1997, pdf
Web links
- Biography on the website of the Institute for High Frequency Technology at RWTH Aachen University
- Vita on the IEEE website
- Short CV on prabook.org
- List of publications at the IEEE
Individual evidence
- ↑ Worldcat
- ^ European Microwave Conference 5th, Hamburg, West Germany, September 1-4, 1975, bibcode : 1975STIA ... 7642040S .
- ↑ Resonance absorber for swallowing electromagnetic waves centimeters
- ↑ Hans Jürgen Schmitt at the Guggenheim Foundation . Retrieved March 1, 2018.
4. http://www.thecrimson.com/article/1961/5/17/12-faculty-members-win-guggenheims-ptwelve/ 1961 Verleihung des Guggenheim Fellow
| personal data | |
|---|---|
| SURNAME | Schmitt, Hans Jürgen |
| BRIEF DESCRIPTION | German physicist |
| DATE OF BIRTH | August 3, 1930 |
| PLACE OF BIRTH | Dortmund |
| DATE OF DEATH | May 25, 2014 |
| Place of death | Aachen |