Scientific Results

Enhanced second-harmonic generation from two-dimensional MoSe2 on a silicon waveguide

Year: 2017

Authors: Chen H., Corboliou V., Solntsev AS., Choi DY., Vincenti MA., de Ceglia D., De Angelis C., Lu YR., Neshev DN.

Autors Affiliation: Australian Natl Univ, Res Sch Phys & Engn, Nonlinear Phys Ctr, Canberra, ACT 2601, Australia; Univ Paris Sud, Inst Opt, Grad Sch, F-91127 Palaiseau, France; Australian Natl Univ, Res Sch Phys & Engn, Laser Phys Ctr, Canberra, ACT 2601, Australia; CNR, Charles M Bowden Lab, Valhermoso Springs, AL 35898 USA;‎ Univ Brescia, Dept Informat Engn, Via Branze 38, I-25123 Brescia, Italy;‎ Univ Brescia, INO CNR, Via Branze 38, I-25123 Brescia, Italy; Australian Natl Univ, Coll Engn & Comp Sci, Res Sch Engn, Canberra, ACT 2601, Australia

Abstract: Two-dimensional transition-metal dichalcogenides (TMDCs) with intrinsically broken crystal inversion symmetry and large second-order nonlinear responses have shown great promise for future nonlinear light sources. However, the sub-nanometer monolayer thickness of such materials limits the length of their nonlinear interaction with light. Here, we experimentally demonstrate the enhancement of the second-harmonic generation from monolayer MoSe2 by its integration onto a 220-nm-thick silicon waveguide. Such on-chip integration allows for a marked increase in the interaction length between the MoSe2 and the waveguide mode, further enabling phase matching of the nonlinear process. The demonstrated TMDC-silicon photonic hybrid integration opens the door to second-order nonlinear effects within the silicon photonic platform, including efficient frequency conversion, parametric amplification and the generation of entangled photon pairs.

Journal/Review: LIGHT: SCIENCE & APPLICATIONS

Volume: 6      Pages from: e17060-1  to: e17060-7

KeyWords: 2D material; MoSe2; SHG; waveguide
DOI: 10.1038/lsa.2017.60

Citations: 54
data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2021-10-24
References taken from IsiWeb of Knowledge: (subscribers only)
Connecting to view paper tab on IsiWeb: Click here
Connecting to view citations from IsiWeb: Click here

gdpr-image
This site uses cookies. If you decide to continue browsing we consider that you accept their use. For more information about cookies and how to delete them please read our Info Policy on cookies use.
Read more