Photonic molecules in the Terahertz - mode splitting in coupled dielectric whispering gallery mode resonators

Author

Preu, S. ; Schwefel, H.G.L. ; Malzer, S. ; Dohler, G.H. ; Wang, L.J. ; Hanson, M. ; Zimmerman, J.D. ; Gossard, A.C.

Author_Institution

Inst. for Opt., Inf. & Photonics Univ. of Erlangen-Nuremberg, Nuremberg

Volume

4

fYear

2008

fDate

22-26 June 2008

Firstpage

27

Lastpage

29

Abstract

We present an investigation of photonic molecules in the (sub-) terahertz range. We couple two dielectric whispering gallery mode resonators with matched resonance spectra over tens of resonances. The (loaded) quality (Q)-factors of the individual disks range from 50 - 800. We observe mode splitting for all modes in the range of 0.15 - 0.33 (0.29) THz for a set of polyethylene (quartz) disks with radius = 3 mm (1.8 mm). With increasing distance of the resonators, the splitting decreases due to reduced mode overlap, in very good agreement with numerical calculations. The frequency splitting of different modes is also in good agreement with the numerical calculation.

Keywords

Q-factor; dielectric resonators; optical resonators; whispering gallery modes; coupled dielectric whispering gallery mode resonators; frequency 0.15 THz to 0.33 THz; numerical calculation; photonic molecules; polyethylene disks; quality factors; terahertz-mode splitting; Couplings; Dielectrics; Frequency; Optical fiber polarization; Optical resonators; Optical surface waves; Optical waveguides; Q factor; Resonance; Whispering gallery modes; coupled resonators; mode splitting; photonic molecule; terahertz; whispering gallery modes;

fLanguage

English

Publisher

ieee

Conference_Titel

Transparent Optical Networks, 2008. ICTON 2008. 10th Anniversary International Conference on

Conference_Location

Athens

Print_ISBN

978-1-4244-2625-6

Electronic_ISBN

978-1-4244-2626-3

Type

conf

DOI

10.1109/ICTON.2008.4598721

Filename

4598721