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Volumn 79, Issue 20, 2009, Pages

Confined longitudinal acoustic phonon modes in free-standing Si membranes coherently excited by femtosecond laser pulses

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EID: 67449096762     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.79.201307     Document Type: Article
Times cited : (54)

References (27)
  • 17
    • 67449088368 scopus 로고    scopus 로고
    • In the first 160 ps of the transients oscillations of higher frequencies are observed, which are damped within 200 ps. Their origin is unclear but may be related to a thin highly strained Si layer. They are subject to further investigations. We would also like to mention that the repetition rate of the pump laser is not commensurate with a subharmonic of the membrane oscillation, which would lead to parametric excitation.
    • In the first 160 ps of the transients oscillations of higher frequencies are observed, which are damped within 200 ps. Their origin is unclear but may be related to a thin highly strained Si layer. They are subject to further investigations. We would also like to mention that the repetition rate of the pump laser is not commensurate with a subharmonic of the membrane oscillation, which would lead to parametric excitation.
  • 20
    • 0003554309 scopus 로고
    • edited by K.-H. Hellwege and O. Madelung, Landolt-Bornstein, New Series, Group III, Vol. Springer, New York
    • Physics of Group IV Elements and III-V Compounds, edited by, K.-H. Hellwege, and, O. Madelung, Landolt-Bornstein, New Series, Group III, Vol. 17, Pt. A (Springer, New York, 1982).
    • (1982) Physics of Group IV Elements and III-V Compounds , vol.17
  • 21
    • 67449102485 scopus 로고    scopus 로고
    • Strictly speaking the various acoustic damping mechanisms and their frequency and size dependences should be included in Eq. 3. This is beyond the scope of the present work, and damping is introduced by the single phenomenological parameter τ.
    • Strictly speaking the various acoustic damping mechanisms and their frequency and size dependences should be included in Eq. 3. This is beyond the scope of the present work, and damping is introduced by the single phenomenological parameter τ.
  • 24
    • 67449097696 scopus 로고    scopus 로고
    • Due to the high repetition rate of the pump laser the experiments are performed on a steady-state background of excited e-h pairs.
    • Due to the high repetition rate of the pump laser the experiments are performed on a steady-state background of excited e-h pairs.
  • 25
    • 48749126500 scopus 로고    scopus 로고
    • edited by S. Volz, Topics in Applied Physics, Vol. Springer, Berlin/Heidelberg
    • B. Perrin, in Microscale and Nanoscale Heat Transfer, edited by, S. Volz, Topics in Applied Physics, Vol. 107 (Springer, Berlin/Heidelberg, 2007), p. 333.
    • (2007) Microscale and Nanoscale Heat Transfer , vol.107 , pp. 333
    • Perrin, B.1
  • 26
    • 67449089832 scopus 로고    scopus 로고
    • After a convergence check N=201 has been used in the calculations.
    • After a convergence check N=201 has been used in the calculations.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.