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The Effects of an Ultrafast Pulsed Laser on YBCO Thin Film Circuit Transients

Rustad, Matthew L.
http://rave.ohiolink.edu/etdc/view?acc_num=wright1653667570901776

Abstract Details

2022, Master of Science (MS), Wright State University, Physics.
Terahertz (THz) frequency light has shown promise for a wide variety of applications due to its material characterization and imaging capabilities. Its nondestructive nature coupled with its submillimeter spatial resolution provides the most value for terahertz light as an imaging tool. The application of terahertz technology has been limited by a lack of novel and powerful sources. It has been shown that that Yttrium Barium Copper Oxide (YBCO), a type II superconductor, has certain properties that would allow YBCO to be an effective source for THz light. Recent microwave work has shown that when a persistent supercurrent is placed on a thin film YBCO ring and is discharged, the decelerating electrons could produce THZ electromagnetic radiation. An ultrafast femtosecond laser incident on such a YBCO ring would disrupt the superconducting mechanism of the material. A series of tests examining YBCO and its optoelectronic properties were conducted. These included ultrafast pump-probe measurements, inspection of the discharging and charging rates, and finally time-domain terahertz emission experiments. The pump-probe measurements revealed electron relaxation times in the picosecond range. While it was shown that the ultrafast laser was able to induce and discharge a super current in the thin film superconductor, it was dependent on laser fluence and had no detectable wavelength dependence. However, no THz radiation was detected with the time-domain measurement system.
Jason Deibel, Ph.D. (Advisor)
Brent Foy, Ph.D. (Committee Member)
Ivan Medvedev, Ph.D. (Committee Member)
73 p.
Physics
Ultrafast; YBCO; Terahertz

Recommended Citations

Citations

  • Rustad, M. L. (2022). The Effects of an Ultrafast Pulsed Laser on YBCO Thin Film Circuit Transients [Master's thesis, Wright State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=wright1653667570901776

    APA Style (7th edition)

  • Rustad, Matthew. The Effects of an Ultrafast Pulsed Laser on YBCO Thin Film Circuit Transients. 2022. Wright State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=wright1653667570901776.

    MLA Style (8th edition)

  • Rustad, Matthew. "The Effects of an Ultrafast Pulsed Laser on YBCO Thin Film Circuit Transients." Master's thesis, Wright State University, 2022. http://rave.ohiolink.edu/etdc/view?acc_num=wright1653667570901776

    Chicago Manual of Style (17th edition)

wright1653667570901776
239
© 2022, some rights reserved.Creative Commons License The Effects of an Ultrafast Pulsed Laser on YBCO Thin Film Circuit Transients by Matthew L. Rustad is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by Wright State University and OhioLINK.