Microscopic interactions governing phase matchability in nonlinear optical materials

Antonio Cammarata*, James Rondinelli

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


Ab initio and group theoretical techniques have been used to investigate the microscopic interactions that govern phase matchability in nonlinear optical materials. Li2CdMS4 (M = Ge, Sn) diamond-like semiconductors (DLSs) have been considered as a case study for their peculiarity: despite the similar geometry and stoichiometry, the former is type I phase matchable unlike the latter. We disentangle the electronic and structural features that determine the dielectric tensor into contributions that can be singularly adjusted, in order to tune the refractive index, and thus the phase matching behavior. We suggest possible experimental routes to modulate the refractive index and hence the phase matchability in DLSs. Finally we propose a new DLS material with low phase matching threshold. Such approach can be extended to harness the optical response in other classes of nonlinear optical materials.

Original languageEnglish (US)
Pages (from-to)5858-5863
Number of pages6
JournalJournal of Materials Chemistry C
Issue number24
StatePublished - 2016

ASJC Scopus subject areas

  • General Chemistry
  • Materials Chemistry


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