Novel liquid photoacoustic cells with inner multi-beam photoacoustic source

Jian Yang; Yong Zhao; Shi-Yuan Yang

doi:10.1117/12.757794

24 January 2008 Novel liquid photoacoustic cells with inner multi-beam photoacoustic source

Jian Yang, Yong Zhao, Shi-Yuan Yang

Proceedings Volume 6829, Advanced Materials and Devices for Sensing and Imaging III; 68291X (2008) https://doi.org/10.1117/12.757794
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

Photoacoustic spectroscopy is a useful noninvasive technique for monitoring chemical composition in liquid. The resolution capability of photoacoustic methods is limited due to the low absorbance factor of some liquid. To increase effective absorbance distance of laser beams, two novel photoacoustic cell structures are introduced, in which multi-beam photoacoustic sources are produced respectively by zigzag reflection and inner-circle reflection of a single incident laser beam. Approximate surface acoustic waves can be produced in the two cell structures. The mathematical models are also labored, which can provide preliminary simulation results. Using which, A conclusion can be drawn that the acoustic pressure produced by the zigzag reflecting multi-beam acoustic source can reach at about 500 times than that produced by single-beam source with same incident laser power. A rough estimate can also be made that with a large number of reflecting, the acoustic pressure produced by the inner-circle reflecting multi-beam source can easily reach 50 times than that produced by single-beam source with same incident laser power.

Citation Download Citation

Jian Yang, Yong Zhao, and Shi-Yuan Yang "Novel liquid photoacoustic cells with inner multi-beam photoacoustic source", Proc. SPIE 6829, Advanced Materials and Devices for Sensing and Imaging III, 68291X (24 January 2008); https://doi.org/10.1117/12.757794

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available