Citation
Chaudhuri, Saptarshi (2013) Measurement, Simulation, and Design of the Dispersion-Engineered Traveling-Wave Kinetic Inductance Amplifier. Senior thesis (Major), California Institute of Technology. doi:10.7907/KTZD-SQ44. https://resolver.caltech.edu/CaltechTHESIS:02132018-103954976
Abstract
Recently, Eom et al. [1 J proposed a new concept for a low-noise cryogenic amplifier known as a Dispersion-Engineered Traveling-Wave Kinetic Inductance (DTWKI) amplifier. This device exploits the nonlinear kinetic inductance of superconducting thin-film nitrides to achieve high gain-bandwidth, near quantum-limited noise, and excellent dynamic range. In this thesis, we describe recent progress toward an experimental realization of the DTWKI; in particular, we focus on improvements in the areas of gain-bandwidth and noise performance. We describe a numerical model of the amplifier, and use this model to interpret experimental results and provide insight into the effects of dispersion-engineering on gain processes. Lastly, based on experimental results and model output, we propose some improvements to the DTWKI device.
| Item Type: | Thesis (Senior thesis (Major)) |
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| Subject Keywords: | Physics |
| Degree Grantor: | California Institute of Technology |
| Division: | Physics, Mathematics and Astronomy |
| Major Option: | Physics |
| Thesis Availability: | Withheld |
| Research Advisor(s): |
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| Group: | Astronomy Department |
| Thesis Committee: |
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| Defense Date: | 7 May 2013 |
| Record Number: | CaltechTHESIS:02132018-103954976 |
| Persistent URL: | https://resolver.caltech.edu/CaltechTHESIS:02132018-103954976 |
| DOI: | 10.7907/KTZD-SQ44 |
| Default Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. |
| ID Code: | 10700 |
| Collection: | CaltechTHESIS |
| Deposited By: | Joy Painter |
| Deposited On: | 14 Feb 2018 00:23 |
| Last Modified: | 10 Mar 2020 23:26 |
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