DC-field-assisted grating formation and nonlinear diffractions in methyl-red dye-doped blue phase liquid crystals

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

We report the observation of enhanced nonlinear optical responses of methyl-red-doped blue-phase liquid crystals by application of a DC field. We have observed strong multi-order nonlinear grating diffractions characterized by a nonlinear index coefficient n2 ∼ 0.5 cm2/W using unfocused CW laser power of ∼1 mW and a DC field of a few V/μm. The underlying mechanisms are crystalline lattice and director axis reorientations by torques exerted by the DC field and photo-excited dye molecules.

Original languageEnglish (US)
Pages (from-to)60-63
Number of pages4
JournalOptics Letters
Volume40
Issue number1
DOIs
StatePublished - Jan 1 2015

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Fingerprint

Dive into the research topics of 'DC-field-assisted grating formation and nonlinear diffractions in methyl-red dye-doped blue phase liquid crystals'. Together they form a unique fingerprint.

Cite this