Integration of fiber-coupled high-Q SiNx microdisks with atom chips
Abstract
Micron scale silicon nitride (SiNx) microdisk optical resonators are demonstrated with Q =3.6×106 and an effective mode volume of 15(λ/n)3 at near-visible wavelengths. A hydrofluoric acid wet etch provides sensitive tuning of the microdisk resonances, and robust mounting of a fiber taper provides efficient fiber optic coupling to the microdisks while allowing unfettered optical access for laser cooling and trapping of atoms. Measurements indicate that cesium adsorption on the SiNx surfaces significantly red detunes the microdisk resonances. Parallel integration of multiple (10) microdisks with a single fiber taper is also demonstrated.
- Publication:
-
Applied Physics Letters
- Pub Date:
- September 2006
- DOI:
- 10.1063/1.2356892
- arXiv:
- arXiv:quant-ph/0605234
- Bibcode:
- 2006ApPhL..89m1108B
- Keywords:
-
- 42.50.Vk;
- 42.81.Qb;
- 32.80.Pj;
- Mechanical effects of light on atoms molecules electrons and ions;
- Fiber waveguides couplers and arrays;
- Optical cooling of atoms;
- trapping;
- Quantum Physics;
- Physics - Optics
- E-Print:
- Published vesion. Minor changes