Observation of coherent optical phonons in BiI3

T. Mishina, Y. Masumoto, B. Fluegel, K. Meissner, N. Peyghambarian

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Resonant coherent lattice vibrations in the vicinity of the indirect absorption edge in a BiI3 layered crystal are observed in a femtosecond pump-probe experiment. Coherent optical phonons that are impulsively excited by femtosecond pump pulses modulate the phase of probe pulses, causing oscillation of the probe spectrum in time. This oscillation, which has a period given by the period of the oscillation, continues for more than 100 cycles. We speculate that the coherent phonon-assisted indirect exciton transitions also contribute to the data.

Original languageEnglish (US)
Pages (from-to)4229-4232
Number of pages4
JournalPhysical Review B
Volume46
Issue number7
DOIs
StatePublished - 1992

ASJC Scopus subject areas

  • Condensed Matter Physics

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