Ultrashort optical pulse characterization using WS2 monolayers

Corey Janisch, Nikhil Mehta, Ding Ma, Ana Laura Elías, Néstor Perea-López, Mauricio Terrones, Zhiwen Liu

Research output: Contribution to journalArticlepeer-review

35 Scopus citations


We demonstrate the application of two-dimensional materials for ultrashort optical pulse characterization. Monolayer transition metal dichalcogenides, such as tungsten disulfide (WS2), possess extraordinarily large second-order nonlinear susceptibility, and due to their atomic thickness, have relaxed phase-matching requirements and, hence, an inherently wide bandwidth. Synthesized monolayer WS2 triangular islands were used to characterize ultrashort optical pulses at the focal point of an objective lens through second-harmonic generation collinear frequencyresolved optical gating.

Original languageEnglish (US)
Pages (from-to)383-385
Number of pages3
JournalOptics Letters
Issue number2
StatePublished - Jan 15 2014

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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