Scanning ultrafast Sagnac interferometry for imaging two-dimensional surface wave propagation

Tachizaki, Takehiro; Muroya, Toshihiro; Matsuda, Osamu; Sugawara, Yoshihiro; Hurley, David H.; Wright, Oliver B.

doi:10.1063/1.2194518

Cited by 135 publications

(116 citation statements)

References 53 publications

(74 reference statements)

Supporting

Mentioning

110

Contrasting

Unclassified

Order By: Relevance

“…Many of the known phenomena in acoustics bear their name, with Lord Rayleigh's studies of fluid surface instabilities, human hearing and fluid jets (Nobel Foundation, 1967), Helmholtz's studies of resonant acoustic cavities, Faraday's observation of vibration-induced surface waves (Faraday, 1831;Miles, 1992), Rayleigh's acoustic streaming (Rayleigh, 1884), and the study of wave propagation in solids by Adams and Soh (2010) are five examples. Unfortunately, acoustics also has a history of attracting eccentrics and outright frauds from Tyndall's time to today, as humorously described by Wright (2006), for example, ''in a recent web page claiming extraordinary benefits of acoustics in health treatment: '. .…”

Section: Background a Acousticsmentioning

confidence: 99%

Microscale acoustofluidics: Microfluidics driven via acoustics and ultrasonics

2011

View full text Add to dashboard Cite

This article reviews acoustic microfluidics: the use of acoustic fields, principally ultrasonics, for application in microfluidics. Although acoustics is a classical field, its promising, and indeed perplexing, capabilities in powerfully manipulating both fluids and particles within those fluids on the microscale to nanoscale has revived interest in it. The bewildering state of the literature and ample jargon from decades of research is reorganized and presented in the context of models derived from first principles. This hopefully will make the area accessible for researchers with experience in materials science, fluid mechanics, or dynamics. The abundance of interesting phenomena arising from nonlinear interactions in ultrasound that easily appear at these small scales is considered, especially in surface acoustic wave devices that are simple to fabricate with planar lithography techniques common in microfluidics, along with the many applications in microfluidics and nanofluidics that appear through the literature.

show abstract

Section: Background a Acousticsmentioning

confidence: 99%

Microscale acoustofluidics: Microfluidics driven via acoustics and ultrasonics

2011

View full text Add to dashboard Cite

show abstract

“…The probe is configured to form a highly sensitive Sagnac interferometer, 20 allowing for measurement of both the time-dependent variation in relative reflectivity amplitude ͑t͒ and phase ␦ ͑t͒ induced by the strain s͑zЈ , t͒ arriving in the metal film. …”

Section: A Setupmentioning

confidence: 99%

Time-resolved interferometric detection of ultrashort strain solitons in sapphire

Capel

Dijkhuis

2010

Phys. Rev. B

View full text Add to dashboard Cite

We study one-dimensional nonlinear propagation of high-amplitude acoustic waves in sapphire, for various sample temperatures, sample thicknesses, and pump fluences. Strain waves are generated in a 100-nm-thick chromium film and launched into the sapphire. For temperatures Ͻ60 K, damping can be neglected and propagation is dominated by the nonlinear and dispersive properties of the sapphire substrate. An interferometric technique is used to detect the wave on an epitaxially grown ϳ20-nm-thick Cr film at the opposite side of the sample. At the lowest temperature of 18 K, a train of up to seven solitons is detected in sapphire for a pump fluence of 11 mJ/ cm 2 . From the soliton amplitudes and velocities, we infer soliton temporal and spatial widths as short as 200 fs and 2 nm. A theoretical analysis based on numerical solution of the Korteweg-de Vries-Burgers equation yields excellent agreement to all experiments presented. Deviations to the direct theoretical result can be explained by pump intensity variations, affecting the ͑nonlinear͒ propagation properties.

show abstract

“…For surface wave generation and detection, we use an optical pump-probe technique with a common-path Sagnac interferometer. 6,7 SAWs are thermoelastically excited by optical pulses from a mode-locked Ti:sapphire laser with a wavelength of 830 nm, repetition rate of 80 MHz, duration of ϳ200 fs and incident pulse energy of ϳ0.5 nJ. To enable the sphere to rotate while keeping the pump spot fixed, the pulses pass through an optical fiber and a SELFOC ® microlens ͑of diameter 1.8 mm and pitch 0.29͒, which are both fixed with the sphere to a biaxial rotation stage as shown in Fig.…”

Section: Experiments and Resultsmentioning

confidence: 99%

“…In this study, we describe how a common-path optical interferometer 6,7 can be adapted to the two-dimensional ͑2D͒ imaging of transient out-of-plane motion of a curved surface. We thereby achieve real-time imaging of the surface motion induced by laser-generated SAWs on a glass sphere.…”

Section: Introductionmentioning

confidence: 99%

Interferometric imaging of surface acoustic waves on a glass sphere

Otsuka¹,

Matsuda²,

Tomoda³

et al. 2010

Journal of Applied Physics

View full text Add to dashboard Cite

We use an ultrafast optical pump and probe technique to investigate the propagation of subgigahertz surface acoustic waves on a 1 mm diameter glass sphere with an aluminum coating. A fiber-based pump setup generates the surface waves and a common-path interferometer images them in the time domain over the sphere surface as they pass through the pole opposite the source of excitation. Fourier analysis allows the acoustic spectrum of the acoustic source to be extracted and waves traveling in opposite directions to be isolated.

show abstract

Scanning ultrafast Sagnac interferometry for imaging two-dimensional surface wave propagation

Cited by 135 publications

References 53 publications

Microscale acoustofluidics: Microfluidics driven via acoustics and ultrasonics

Microscale acoustofluidics: Microfluidics driven via acoustics and ultrasonics

Time-resolved interferometric detection of ultrashort strain solitons in sapphire

Interferometric imaging of surface acoustic waves on a glass sphere

Contact Info

Product

Resources

About