Direct comparison of second and third harmonic generation in mono- and few-layer MX2 (M=Mo, W; X=S, Se) by multiphoton microscope

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Details

Original languageEnglish
Title of host publication2016 Conference on Lasers and Electro-Optics, CLEO 2016
Publication statusPublished - 16 Dec 2016
MoE publication typeB3 Non-refereed article in conference proceedings
EventConference on Lasers and Electro-Optics - San Jose, United States
Duration: 5 Jun 201610 Jun 2016

Publication series

NameConference on Lasers and Electro-Optics
ISSN (Print)2160-9020

Conference

ConferenceConference on Lasers and Electro-Optics
Abbreviated titleCLEO
CountryUnited States
CitySan Jose
Period05/06/201610/06/2016

Researchers

  • Anton Autere
  • Antti Säynätjoki
  • Lasse Karvonen
  • Babak Amirsolaimani
  • Henri Jussila
  • He Yang
  • Robert A. Norwood
  • Nasser Peyghambarian
  • Harri Lipsanen

  • Khanh Kieu
  • Zhipei Sun

Research units

  • University of Eastern Finland
  • University of Arizona

Abstract

We present a comprehensive study of second harmonic generation (SHG) and third harmonic generation (THG) from single- and few-layer transition metal dichalcogenides (MoS2, MoSe2, WS2 and WSe2). We measure SHG and THG from these materials with a multiphoton microscope with linearly polarized 1560 nm femtosecond excitation. We find that SHG from monolayer MoSe2 under 1560 nm excitation is more than four times stronger than that of other studied materials. This can be attributed to resonant enhancement of SHG in MoSe2.

ID: 10796045