Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Photoacoustic waves generated in blood studied using pulsed digital holography

Not Accessible

Your library or personal account may give you access

Abstract

We studied photoacoustic waves using pulsed digital holography. The acoustic waves were generated in a reindeer blood target by absorption of an IR laser pulse, λ=1064nm and pulse length=12ns. The acoustic pressure waves were then imaged in water using a second collimated laser pulse at λ=532nm 2μs after the first IR pulse. Quantitative information on acoustic wave properties such as three-dimensional shape and pressure distribution was calculated by applying the inverse Radon transform on the recorded projection. The pressure pulse had a flat and sharp front parallel with the blood surface, which indicates that the pressure was generated at the blood surface. The generated pressure was proportional to the laser fluence with the proportionality constant equal to 1.8±0.3cm1. According to existing data, the proportionality constant should be 1.4cm1 for oxygenated human blood, which made our calculations probable.

© 2010 Optical Society of America

Full Article  |  PDF Article
More Like This
Photoacoustic holographic imaging of absorbers embedded in silicone

Erik Olsson, Per Gren, and Mikael Sjödahl
Appl. Opt. 50(17) 2551-2558 (2011)

Ultra-fast photoacoustic flow cytometry with a 0.5 MHz pulse repetition rate nanosecond laser

Dmitry A. Nedosekin, Mustafa Sarimollaoglu, Evgeny V. Shashkov, Ekaterina I. Galanzha, and Vladimir P. Zharov
Opt. Express 18(8) 8605-8620 (2010)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (7)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (5)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved