Journal
IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY
Volume 3, Issue 1, Pages 81-86Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TTHZ.2012.2234209
Keywords
Coherent synchrotron radiation; high-temperature superconductor YBa2Cu3O7-delta; picosecond THz pulses; thin-film THz detectors
Funding
- German Federal Ministry of Education and Research [05K2010]
- Agence Nationale de la Recherche [2010042301]
- Grants-in-Aid for Scientific Research [22340107] Funding Source: KAKEN
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A high-speed YBa2Cu3O7-delta direct detection system was developed to monitor terahertz picosecond pulses in the time domain. High-superconducting thin-film YBa2Cu3O7-delta microbridges with critical temperatures of T-C = 85 K were embedded into a planar log-spiral antenna to couple the broadband terahertz radiation (0.1 -2 THz) of several picosecond pulsed sources. The YBa2Cu3O7-delta detectors were installed in a liquid nitrogen cryostat equipped with 18 GHz effective bandwidth readout electronics. THz pulses generated at the electron storage rings ANKA and UVSOR-II have been resolved with a temporal resolution of 30 ps (full width at half maximum) limited by the readout electronics bandwidth. Beam dynamic effects of bursting coherent synchrotron radiation were successfully monitored.
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