Study of paramagnetic properties of Fe3+ ions to realizing Whispering Gallery Maser Oscillator

Author

Benmessaï, K. ; Bourgeois, P. -Y ; Oxborrow, M. ; Bazin, N. ; Kersalé, Y. ; Giordano, V.

Author_Institution

Dpt. LPMO, Univ. de Franche-Comte, Besancon

fYear

2006

fDate

38869

Firstpage

823

Lastpage

826

Abstract

In a preceding publication, we reported the experimental demonstration of maser oscillation at 12.04 GHz in a cryogenic sapphire whispering-gallery-mode resonator, where the resonator´s dielectric ring contained a low concentration of paramagnetic Fe³⁺ ions within its monocrystalline sapphire lattice. Our preliminary measurements revealed a frequency stability of the order of 2.5 times 10^-14 in a non-optimized design. In this paper, we report new measurements made on this same resonator to determine more precisely the main parameters affecting the dynamics of the Fe³⁺ ions when exposed to a microwave signal within their ESR bandwidth

Keywords

crystal resonators; ion mobility; iron; masers; microstrip resonators; microwave spectra; paramagnetic resonance; paramagnetism; positive ions; spin systems; whispering gallery modes; ESR bandwidth; Fe³⁺; Fe³⁺ ions; ion dynamics; microwave signal exposure; paramagnetic properties; whispering gallery maser oscillator; Cryogenics; Dielectric measurements; Frequency measurement; Iron; Lattices; Masers; Microwave measurements; Oscillators; Paramagnetic materials; Stability;

fLanguage

English

Publisher

ieee

Conference_Titel

International Frequency Control Symposium and Exposition, 2006 IEEE

Conference_Location

Miami, FL

Print_ISBN

1-4244-0074-0

Electronic_ISBN

1-4244-0074-0

Type

conf

DOI

10.1109/FREQ.2006.275495

Filename

4053873