Chirped ordered pulses for ultra-broadband ESR spectroscopy

Journal article

Recently, applications of swept-frequency pulses proved to be a useful approach to circumvent the problem of limited excitation bandwidth in pulsed ESR posed by conventional pulses. Here, we present a chirped excitation sequence, CHirped ORdered pulses for Ultra-broadband Spectroscopy (CHORUS), for ultra-broadband ESR spectroscopy. It will be demonstrated that the application of this sequence can address the problems of excitation non-uniformity and sensitivity to instrumental instabilities to a greater extent compared to the current state of the art. This sequence is highly promising for finding applications beyond single excitation in many ESR experiments. Theoretical and experimental results for the proposed method are presented along with calibration strategies for experimental implementation.

Authors: Verstraete, J-B; Myers, WK; Foroozandeh, M

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: AIP Publishing
• Journal: Journal of Chemical Physics
• Volume: 154
• Issue: 9
• Article number: 094201
• Publication date: 2021-03-03
• Acceptance date: 2021-02-12
• DOI: 10.1063/5.0038511
• EISSN: 1089-7690
• ISSN: 0021-9606
• Language: English
• Keywords: FFR