Chromatic-aberration-free multispectral optical-resolution photoacoustic microscopy using reflective optics and a supercontinuum light source

A supercontinuum (SC) light source enables multispectral photoacoustic imaging at excitation wavelengths in the visible-to-near-infrared range. However, for such a broad optical wavelength range, chromatic aberration is non-negligible. We developed a multispectral optical-resolution photoacoustic mi...

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Veröffentlicht in:Applied optics (2004) 2021-11, Vol.60 (31), p.9651-9658
Hauptverfasser: Tachi, Kazuyoshi, Hirasawa, Takeshi, Okawa, Shinpei, Horiguchi, Akio, Ito, Keiichi, Ishihara, Miya
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Sprache:eng
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Zusammenfassung:A supercontinuum (SC) light source enables multispectral photoacoustic imaging at excitation wavelengths in the visible-to-near-infrared range. However, for such a broad optical wavelength range, chromatic aberration is non-negligible. We developed a multispectral optical-resolution photoacoustic microscopy (MS-OR-PAM) setup with a nanosecond pulsed SC light source and a reflective objective lens to avoid chromatic aberration. Chromatic aberrations generated by reflective and conventional objective lenses were compared, and the images acquired using the reflective objective were not affected by chromatic aberration. Hence, MS-OR-PAM with the reflective objective was used to distinguish red blood cells from melanoma cells via spectral subtraction processing.
ISSN:1559-128X
2155-3165
1539-4522
DOI:10.1364/ao.434817