Nonlinear refractive index of solids in mid-infrared

Abstract

We measure the third-order nonlinear optical response of various dielectrics and semiconductors using the spectrally resolved two-beam coupling method at 2.3 µm, 3.5 µm, 4.5 µm, and 8.3 µm. These materials include fused silica, sapphire, calcium fluoride, magnesium fluoride, zinc sulphide, and zinc selenide. We compare our results with previous literature results and theoretically expected values using two-band model theory. The dispersion of the nonlinear refractive index n 2 over this wavelength range is found to be negligible.

Document Details

• Document Type: Pub Defense Publication
• Publication Date: Apr 06, 2021
• Source ID: 10.1364/ol.421469

Entities

People

• Alexander L. Gaeta
• Cecilia Y. Chen
• Gauri Patwardhan
• Jared S. Ginsberg
• M. Mehdi Jadidi

Organizations

• Columbia University
• Cornell University
• National Science Foundation

Tags

Fields of Study

• Materials science
• Physics

Readers

• Materials Science and Engineering.
• Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.
• Wave Propagation and Nonlinear Chaotic Dynamics.

Technology Areas

• Microelectronics