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Title: Interferometer measurements of terahertz waves from Bi 2Sr 2CaCu 2O 8+d mesas
Authors: Türkoğlu, Fulya
Köseoğlu, Hasan
Demirhan, Yasemin
Özyüzer, Lütfi
Preu, Sascha
Malzer, Stefan
Şimşek, Yusuf
Müller, P.
Yamamoto, T.
Kadowaki, K.
Keywords: Michelson interferometers
Terahertz (THz) waves
Silicon detectors
Mesa structure
e-Beam lithography
Publisher: IOP Publishing Ltd.
Source: Türkoğlu, F., Köseoğlu, H., Demirhan, Y., Özyüzer, L., Preu, S., Malzer, S., Şimşek, Y., Müller, P., Yamamoto, T. and Kadowaki, K. (2012). Interferometer measurements of terahertz waves from Bi 2Sr 2CaCu 2O 8+d mesas. Superconductor Science and Technology, 25(12). doi:10.1088/0953-2048/25/12/125004
Abstract: We fabricated rectangular mesa structures of superconducting Bi 2Sr 2CaCu 2O 8+d (Bi2212) using e-beam lithography and Ar ion beam etching techniques for terahertz (THz) emission. c-axis resistance versus temperature (R-T), current-voltage (I-V) characteristics and bolometric THz power measurements were performed to characterize Bi2212 mesas. The emission frequency of mesas was determined using a Michelson interferometer setup which also demonstrates polarized emission. Interference patterns of THz radiation from Bi2212 mesas were detected by various detectors such as a liquid helium cooled silicon composite bolometer, a Golay cell and a pyroelectric detector. An emitted power as high as 0.06mW was detected from Bi2212 mesas. For the first time, most of the pumped power was extracted as THz emission from a Bi2212 mesa. The radiation at 0.54THz was detected using the Michelson interferometric setup.
ISSN: 0953-2048
Appears in Collections:Physics / Fizik
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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