Reference

Absorption Spectra of Major Cromophores Used in Photoacoustics

Methylene Blue Spectrum

Methylene blue spectrum was taken by Scott Prahl with a HP spectrophotometer using a 1 cm quartz cuvette filled with 10µM solution of Methylene Blue in water. To convert this data to absorbance A, multiply by the molar concentration and the pathlength.

To convert this data to absorption coefficient in (cm-1), multiply by the molar concentration and 2.303.

Indocyanine Green Spectrum

Indocyanine green spectrum was taken by Andrew Barofsky with a HP spectrophotometer. The low concentration is very noisy because the data was scanned too quickly for such a concentration.
To convert this data to absorbance A, multiply by the molar concentration and the pathlength.

To convert this data to absorption coefficient in (cm-1), multiply by the molar concentration and 2.303

Simulate Oxy- and Deoxy-Hemoglobin

Solutions Of Cupric and Nickel Sulfate can be used to simulate oxy- and deoxy-hemoglobin. They are very stable and purely aborbing​

Absorption Spectra of Biological Components

Wavelength Range of 400 to 2500nm

Blood absorption coefficient, scattering coefficient as well as anisotrophy factor g for the wavelength range of 400 to 2500nm according to

A. Roggan, M. Friebel, K. Dorschel, A. Hahn, and G. Muller, “Optical properties of circulating human blood in the wavelength range 400-2500 NM,” Journal of Biomedical Optics 4, 36-46 (1999).​

Mammalian Fat Spectrum

Mammalian Fat spectrum was taken by R.L.P. van Veen and H.J.C.M. Sterenborg, A. Pifferi, A. Torricelli and R. Cubeddu Determination of VIS- NIR absorption coefficients of mammalian fat, with time- #and spatially resolved diffuse reflectance and transmission spectroscopy #OSA Annual BIOMED Topical Meeting, 2004.

Bilirubin

Bilirubin retrieved from University of Arizona Database.

Haemoglobin and Oxyhaemoglobin

Haemoglobin and Oxyhaemoglobin retrieved from University of Arizona Database.

Acoustic Properties of Materials

Speed of Sound vs Temperature

Speed of sound vs Temperature compiled by Peter Brecht. Range of validity: 0-95°C at atmospheric pressure. according to formula by 
Marczak (1997) combined three sets of experimental measurements, Del Grosso and Mader (1972)Kroebel and Mahrt (1976) and Fujii and Masui (1993) and produced a fifth order polynomial based on the 1990 International Temperature Scale.

More Acoustic Properties

​The following acoustic properties were  provided by ONDA Corporation a leading developer in ultrasound measurement instrumentation and services. Additional properties as well as educational information and and FAQ and be found in their reference section

Additional Spectra Database

The University of Arizona is hosting a Spectra Database of Dyes (Absorprion/Emmission), Filters, Dichroic Mirrors and Light Sources. This link will take you to the Spectraviewer. All spectras are downloadable in CSV format.​