Sep 26, 2023
Stacking order and strain boosts second-harmonic generation with 2D Janus hetero-bilayers
Posted by Dan Breeden in categories: biotech/medical, materials
A group of researchers from Tohoku University, Massachusetts Institute of Technology (MIT), Rice University, Hanoi University of Science and Technology, Zhejiang University, and Oak Ridge National Laboratory have proposed a new mechanism to enhance short-wavelength light (100–300 nm) by second harmonic generation (SHG) in a two-dimensional (2D), thin material composed entirely of commonplace elements.
Since UV light with SHG plays an important role in semiconductor lithography equipment and medical applications that do not use fluorescent materials, this discovery has important implications for existing industries and all optical applications.
Details of the research were published in the journal ACS Nano on August 29, 2023. The study was selected to be featured on the cover.