Superconducting THz Emitters and Receivers in YBCO Utilizing Focused Helium Beam Nanolithography
SBIR Report,01 Sep 2018,30 Jun 2019
Tristan Technologies Inc San Diego United States
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Report developed under SBIR contract for topic AF181-004. There exists an under-utilized portion of the electromagnetic spectrum, located between the microwave and infrared wavelengths, known as terahertz radiation. In this Phase I effort, we developed THz transmitters and receivers by using Helium ion beam nano-lithography to fabricate Josephson junction arrays in YBCO, and evaluated their effectiveness at generating and detecting THz radiation. These transmitter and receiver devices were then tested in tandem with the goal of using the receiver to detect power radiated from the emitter at THz frequencies. Furthermore, we have developed a cryopackaging solution for a Phase II prototype THz spectrometer employing these HTS THz transmitters and receivers to interrogate the transmission, reflection, and absorption spectra of a sample-under-test.
- Radiofrequency Wave Propagation