High-resolution imaging of surface acoustic wave scattering

被引：14

作者：

Hesjedal, T ^{[1
]}

Behme, G

机构：

[1] Stanford Univ, CISX, Solid State & Photon Lab, Stanford, CA 94305 USA

[2] Paul Drude Inst Solid State Elect, D-10117 Berlin, Germany

来源：

APPLIED PHYSICS LETTERS | 2001年 / 78卷 / 13期

关键词：

D O I：

10.1063/1.1357453

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We examine the scattering of surface acoustic waves (SAWs) by single dots, periodic and locally damped two-dimensional dot lattices. Employing the scanning acoustic force microscope, SAW fields are imaged with nanometer resolution. We study the influence of a roughly wavelength-sized single dot on SAW diffraction. In order to distinguish between forward- and backscattered components, we insonify the dot with the pump and probe beam under 0 degrees and 90 degrees. We furthermore analyze the SAW diffraction by a regular dot array. The wave field appears to be localized around the dots. Adding surface distortions, the regular SAW localization pattern brakes down in the vicinity of the distortion. (C) 2001 American Institute of Physics.

引用

页码：1948 / 1950

页数：3

共 17 条

[1] Transverse surface acoustic wave detection by scanning acoustic force microscopy [J].

Behme, G ;

Hesjedal, T ;

Chilla, E ;

Frohlich, HJ .

APPLIED PHYSICS LETTERS, 1998, 73 (07) :882-884

[2] Simultaneous bimodal surface acoustic-wave velocity measurement by scanning acoustic force microscopy [J].

Behme, G ;

Hesjedal, T .

APPLIED PHYSICS LETTERS, 2000, 77 (05) :759-761

[3] Nanoscale determination of phase velocity by scanning acoustic force microscopy [J].

Chilla, E ;

Hesjedal, T ;

Frohlich, HJ .

PHYSICAL REVIEW B, 1997, 55 (23) :15852-15855

[4] High frequency one-dimensional phononic crystal characterized with a picosecond transient grating photoacoustic technique [J].

Dhar, L ;

Rogers, JA .

APPLIED PHYSICS LETTERS, 2000, 77 (09) :1402-1404

[5] Investigation of single surface acoustic wave sources [J].

Hesjedal, T ;

Behme, G .

ELECTRONICS LETTERS, 2000, 36 (22) :1903-1904

[6] High resolution visualization of acoustic wave fields within surface acoustic wave devices [J].

Hesjedal, T ;

Chilla, E ;

Frohlich, HJ .

APPLIED PHYSICS LETTERS, 1997, 70 (11) :1372-1374

[7] SCANNING ACOUSTIC FORCE MICROSCOPE MEASUREMENTS ON GRATING-LIKE ELECTRODES [J].

HESJEDAL, T ;

CHILLA, E ;

FROHLICH, HJ .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1995, 61 (03) :237-242

[8] ACOUSTIC BAND-STRUCTURE OF PERIODIC ELASTIC COMPOSITES [J].

KUSHWAHA, MS ;

HALEVI, P ;

DOBRZYNSKI, L ;

DJAFARIROUHANI, B .

PHYSICAL REVIEW LETTERS, 1993, 71 (13) :2022-2025

[9] LOCALIZATION OF SURFACE ACOUSTIC-WAVES IN A ONE-DIMENSIONAL QUASI-CRYSTAL [J].

MACON, L ;

DESIDERI, JP ;

SORNETTE, D .

PHYSICAL REVIEW B, 1991, 44 (13) :6755-6772

[10] Surface-acoustic-wave absorption by quantum-dot arrays [J].

Nash, GR ;

Bending, SJ ;

Boero, M ;

Riek, M ;

Eberl, K .

PHYSICAL REVIEW B, 1999, 59 (11) :7649-7655

← 1 2 →