Optoacoustic response from graphene-based solutions embedded in optical phantoms by using 905-nm high-power diode-laser assemblies

Luca Leggio; Daniel C. Gallego; Sandeep Babu Gawali; Ehsan Dadrasnia; Miguel Sánchez; Sergio Rodríguez; Marta González; Guillermo Carpintero; Marek Osiński; Horacio Lamela

doi:10.1117/12.2207245

17 March 2016 Optoacoustic response from graphene-based solutions embedded in optical phantoms by using 905-nm high-power diode-laser assemblies

Luca Leggio, Daniel C. Gallego, Sandeep Babu Gawali, Ehsan Dadrasnia, Miguel Sánchez, Sergio Rodríguez, Marta González, Guillermo Carpintero, Marek Osiński, Horacio Lamela

Author Affiliations +

Proceedings Volume 9708, Photons Plus Ultrasound: Imaging and Sensing 2016; 97083M (2016) https://doi.org/10.1117/12.2207245
Event: SPIE BiOS, 2016, San Francisco, California, United States

Abstract

During the last two decades, optoacoustic imaging has been developed as a novel biomedical imaging technique based on the generation of ultrasound waves by means of laser light. In this work, we investigate the optoacoustic response from graphene-based solutions by using a compact and cost-effective system based on an assembly of several 905-nm pulsed high-power diode lasers coupled to a bundle of 200-μm diameter- core optical fibers. The coupled light is conveyed into a lens system and focused on an absorber consisting of graphene-based nanomaterials (graphene oxide, reduced graphene oxide, and reduced graphene-oxide/gold-nanoparticle hybrid, respectively) diluted in ethanol and hosted in slightly scattering optical phantoms. The high absorption of these graphene-based solutions suggests their potential future use in optoacoustic applications as contrast agents.

Citation Download Citation

Luca Leggio, Daniel C. Gallego, Sandeep Babu Gawali, Ehsan Dadrasnia, Miguel Sánchez, Sergio Rodríguez, Marta González, Guillermo Carpintero, Marek Osiński, and Horacio Lamela "Optoacoustic response from graphene-based solutions embedded in optical phantoms by using 905-nm high-power diode-laser assemblies", Proc. SPIE 9708, Photons Plus Ultrasound: Imaging and Sensing 2016, 97083M (17 March 2016); https://doi.org/10.1117/12.2207245

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