Title :
Development of sub-THz TUNNETT diode for biomedical imaging
Author :
Nishizawa, Jin-ichi ; Kurabayashi, Toru ; Miura, Yasuhiro ; Sawai, Takashi ; Plotka, Piotr ; Watenabe, Minro
Author_Institution :
Semicond. Res. Inst., Med. Univ., Iwate
Abstract :
TUNNETT diodes are low-noise oscillators based on transit-time delay on tunneling injection of electrons. We have fabricated TUNNETTs and demonstrated sub-THz imaging using a continuous-wave (CW), fundamental-mode generator in the frequency up to 706 GHz. Some biomedical applications have been demonstrated using the feature of TUNNETT as predominant stability of the power. A scanning sub-THz imaging has been demonstrated for an inspection of tissues from internal organs containing cancer cells, and skin surfaces.
Keywords :
biomedical imaging; submillimetre wave imaging; transit time devices; tunnel diodes; biomedical imaging; continuous wave generator; electron tunneling injection; fundamental mode generator; low-noise oscillator; subterahertz TUNNETT diode; subterahertz imaging; transit-time delay; Biomedical imaging; Cancer; Delay; Diodes; Electrons; Frequency; Inspection; Oscillators; Stability; Tunneling;
Conference_Titel :
Infrared and Millimeter Waves, 2007 and the 2007 15th International Conference on Terahertz Electronics. IRMMW-THz. Joint 32nd International Conference on
Conference_Location :
Cardiff
Print_ISBN :
978-1-4244-1438-3
DOI :
10.1109/ICIMW.2007.4516434
