A study of interaction surface acoustic wave with localized surface plasmon resonance

Abstract

A surface acoustic wave (SAW) has the ability to manipulate droplets, and a localized surface plasmon resonance (LSPR) is expected to be utilized for biosensors. By integrating both of them on a single substrate, it is possible to create a new microfluidic system. In order to achieve this goal, the interaction the SAW with the LSPR was investigated by fabricating the substrate and measuring. As a result, it was found that the reflectance characteristics of the LSPR decreased and the spectrum shift in the short wavelength direction was observed during the SAW generated. The reason was experimentally considered and found that the LSPR was influenced from the temperature distribution on the SAW device. On the other hand, the increase of the SAW amplitude was observed by the LSPR excited. The results obtained indicate that control of the temperature is necessary to integrate the SAW and LSPR on the same substrate.

Memristive Properties of Oxide-based High-Temperature Superconductors

“…In air the surface of cleavage degrades by oxygen for dimension of the order of 10 nm [15] (Fig.2). So, this surface layer determines the resistance of Ag/BSCCO microcontact: it is known [19,20] that in point contact geometry of current spreading, heterocontact resistance is determined by volume of the order of d 3 from the side of both contacting electrodes (d is contact diameter). The resistance of each electrode can be calculated from the ratio:…”

“…where i is the resistance of one of the electrodes. If on the surface there is one or several interlayers with different resistance sk, an additional contribution appears [20]:…”

Cantilever damage evaluation using impedance-loaded SAW sensor with continuous wavelet analysis and machine learning

“…[7][8][9] Therefore, realizing a health monitoring system using a wireless passive surface acoustic wave (SAW) sensor is paramount. 10) Because SAW devices do not require a bias supply and can be operated by an optimum radio frequency signal, [11][12][13] wireless and passive sensors are suitable in this case. Therefore, the wireless passive SAW sensor has the advantage of obtaining quantitative information perpetually even when unattended.…”

Formation of jet atomization using a steel plate vibrated by weakly coupled ultrasonic transducer through water

“…© 2019 The Japan Society of Applied Physics Supplementary material for this article is available online A tomization using ultrasonic vibration has been performed for nearly 100 years; 1,2) however, the generation mechanism of atomization is a historical challenge that has not been elucidated completely, [3][4][5][6][7] and three hypotheses have been developed: surface wave theory, 2,8,9) cavitation theory, [10][11][12][13] and boiling theory. 6,7,14,15) The progress of atomization techniques is very rapid and diverse, and they are widely disseminated not only in industry [16][17][18][19][20] but also in daily life. 21,22) For example, J.…”