Complementary detection of confined acoustic phonons in quantum dots by coherent phonon measurement and Raman scattering | Zendy

Michio Ikezawa | Zendy; Tsuyoshi Okuno | Zendy; Yasuaki Masumoto | Zendy; A. A. Lipovskiĭ | Zendy

Open Access

Complementary detection of confined acoustic phonons in quantum dots by coherent phonon measurement and Raman scattering

Author(s) -

Michio Ikezawa,

Tsuyoshi Okuno,

Yasuaki Masumoto,

A. A. Lipovskiĭ

Publication year - 2001

Publication title -

physical review. b, condensed matter

Language(s) - English

Resource type - Journals

eISSN - 1095-3795

pISSN - 0163-1829

DOI - 10.1103/physrevb.64.201315

Subject(s) - phonon , raman scattering , raman spectroscopy , femtosecond , oscillation (cell signaling) , condensed matter physics , x ray raman scattering , physics , scattering , coherent anti stokes raman spectroscopy , materials science , optics , laser , chemistry , biochemistry

Coherent acoustic phonon oscillation is observed in PbSe quantum dots embedded in phosphate glass by femtosecond pump-and-probe. The size dependence of the oscillation is investigated. Distinct low-frequency peaks are observed in Raman spectrum for the same samples. The size-dependence of the frequencies is well explained by elastic sphere model, but the observed modes are different to each other for coherent phonon and Raman scattering. Coherent phonon measurement and Raman scattering are found to give complementary information on confined acoustic phonons in this system

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research