Abstract
We propose the demonstration of a portable electron spin resonance (ESR) spectrometer using an integrated voltage-controlled oscillator (VCO) as both RF excitation source and ESR detector. As an extension to the work presented by our group in [1], in which we extracted the spectroscopic information from an ESR-induced change in the oscillation frequency, in the presented setup, we sense the ESR signal as a change of the VCO amplitude by utilizing the built-in AM-demodulation capabilities of an LC tank VCO [2]. This amplitude-sensitive approach not only greatly further reduces system complexity but also opens up the path towards more advanced ESR detection methods in addition to the conventional continuous-wave method used in [1].
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.