title: Near-infrared spectroscopic photoacoustic microscopy using a multi-color fiber laser source.
abstract: We demonstrate a simple multi-wavelength optical source suitable for spectroscopic optical resolution photoacoustic microscopy (OR-PAM) of lipid-rich tissue. 1064 nm laser pulses are converted to multiple wavelengths beyond 1300 nm via nonlinear optical propagation in a birefringent optical fiber. OR-PAM experiments with lipid phantoms clearly show the expected absorption peak near 1210 nm. We believe this simple multi-color technique is a promising cost-effective approach to spectroscopic OR-PAM of lipid-rich tissue.
authors: Department of Electrical and Computer Engineering, Union College, Schenectady, NY 12308, USA ; Bioengineering Program, Union College, Schenectady, NY 12308, USA.
authors: Takashi
authors: T
authors: Buma
authors: Bioengineering Program, Union College, Schenectady, NY 12308, USA.
authors: Benjamin C
authors: BC
authors: Wilkinson
authors: Bioengineering Program, Union College, Schenectady, NY 12308, USA.
authors: Timothy C
authors: TC
authors: Sheehan
keywords: (110.5120) Photoacoustic imaging; (190.4370) Nonlinear optics, fibers; (190.4380) Nonlinear optics, four-wave mixing; (190.5890) Scattering, stimulated