מוליכי גלים בסיליקה ובזכוכית לא ליניארית
Waveguides in silica and nonlinear glass
Photonic devices in nonlinear glasses are promising platfom of optical signal processing and sensing applications. The fabrictaion of such waveguides involves either direct laser-beam lithography or etching processes. Both procedures suffer from fundamental drawbacks. The project looks to examine a new paradigm for the fabrication of these devices, based on the etching of a silica substrate and the subsequent deposition of the nonlinear glass film. The proposed protocol is expected to acheive superior loss performance, and enable new types of photonic devices
The students will study the propoerties of dielectric optical waveguides from literature. They will solve for the propagation of light in waveguides analytically, for a number of test cases in which this is possible. Next, extensive numerical simulations of the proposed waveguides will be carried out. Lastly, the students will participlate in the fabrication and the laboratroy characterization of waveguides and devices
Electro-Optics track. Interest in electro-magnetics. Willingness to work hard, and invest effort in developing skills in both numerical simulations and laboratory work.
1. R. Califa, Y. Kaganovskii, D. Munk, H. Genish, I. Bakish, M. Rosenbluh, and A. Zadok, "Large photo-induced index variations in chalcogenide-on-silicon. 2. S. Levy, M. Klebanov, and A. Zadok, "High-Q ring resonators directly written in As2S3 chalcogenide glass films," Photon. Res. 3, 63-67 (2015). waveguides," Optics Letters 39, 5905-5908 (2014). Available from Avi Zadok upon request