Light focusing and two-dimensional imaging through scattering media using the photoacoustic transmission matrix with an ultrasound array.
We implement the photoacoustic transmission matrix approach on a two-dimensional photoacoustic imaging system, using a 15 MHz linear ultrasound array. Using a black leaf skeleton as a complex absorbing structure, we demonstrate that the photoacoustic transmission matrix approach allows to reveal structural features that are invisible in conventional photoacoustic images, as well as to selectively control light focusing on absorbing targets, leading to a local enhancement of the photoacoustic signal.
Thomas
T
Chaigne
Jérôme
J
Gateau
Ori
O
Katz
Emmanuel
E
Bossy
Sylvain
S
Gigan
D054459:Elasticity Imaging Techniques / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007089:Image Enhancement / Q000295:instrumentation; D007834:Lasers; D008027:Light; D008029:Lighting / Q000295:instrumentation*; D046228:Microarray Analysis / Q000295:instrumentation*; D009391:Nephelometry and Turbidimetry / Q000295:instrumentation* / Q000379:methods; D061088:Photoacoustic Techniques / Q000295:instrumentation*; D018515:Plant Leaves / Q000166:cytology*; D012542:Scattering, Radiation