Picosecond acoustics for the characterization of sub-micron polymeric films

K. C. Bretz; Y. C. Lee; T. D. Krauss; F. W. Wise; W. H. Sachse

doi:10.1016/0041-624X(96)00030-3

Picosecond acoustics for the characterization of sub-micron polymeric films

K. C. Bretz, Y. C. Lee, T. D. Krauss, F. W. Wise, W. H. Sachse

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

To characterize 5-50 nm poly(vinyl-2-pyridine) (PVP) films, we generate ultra-high frequency longitudinal acoustic waves (30-150GHz) in A1 using femtosecond laser pulses in a time delayed 'pump' and 'probe' beam configuration. For polymer film thicknesses of 12 nm we find an enhanced longitudinal wavespeed of 3858 m s ^-1. The acoustic response from a PVP film with a thickness of 5 nm has been detected.

Original language	English
Pages (from-to)	513-515
Number of pages	3
Journal	Ultrasonics
Volume	34
Issue number	2-5
DOIs	https://doi.org/10.1016/0041-624X(96)00030-3
Publication status	Published - 1996 Jun

All Science Journal Classification (ASJC) codes

Acoustics and Ultrasonics

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10.1016/0041-624X(96)00030-3

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title = "Picosecond acoustics for the characterization of sub-micron polymeric films",

abstract = "To characterize 5-50 nm poly(vinyl-2-pyridine) (PVP) films, we generate ultra-high frequency longitudinal acoustic waves (30-150GHz) in A1 using femtosecond laser pulses in a time delayed 'pump' and 'probe' beam configuration. For polymer film thicknesses of 12 nm we find an enhanced longitudinal wavespeed of 3858 m s -1. The acoustic response from a PVP film with a thickness of 5 nm has been detected.",

author = "Bretz, {K. C.} and Lee, {Y. C.} and Krauss, {T. D.} and Wise, {F. W.} and Sachse, {W. H.}",

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AU - Bretz, K. C.

AU - Lee, Y. C.

AU - Krauss, T. D.

AU - Wise, F. W.

AU - Sachse, W. H.

PY - 1996/6

Y1 - 1996/6

N2 - To characterize 5-50 nm poly(vinyl-2-pyridine) (PVP) films, we generate ultra-high frequency longitudinal acoustic waves (30-150GHz) in A1 using femtosecond laser pulses in a time delayed 'pump' and 'probe' beam configuration. For polymer film thicknesses of 12 nm we find an enhanced longitudinal wavespeed of 3858 m s -1. The acoustic response from a PVP film with a thickness of 5 nm has been detected.

AB - To characterize 5-50 nm poly(vinyl-2-pyridine) (PVP) films, we generate ultra-high frequency longitudinal acoustic waves (30-150GHz) in A1 using femtosecond laser pulses in a time delayed 'pump' and 'probe' beam configuration. For polymer film thicknesses of 12 nm we find an enhanced longitudinal wavespeed of 3858 m s -1. The acoustic response from a PVP film with a thickness of 5 nm has been detected.

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EP - 515

JO - Ultrasonics

JF - Ultrasonics

IS - 2-5

ER -

Picosecond acoustics for the characterization of sub-micron polymeric films

Abstract

All Science Journal Classification (ASJC) codes

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