Continuous wave laser diodes enable fast optoacoustic imaging
Stylogiannis A, Prade L, Buehler A, Aguirre J, Sergiadis G, Ntziachristos V (2018)
Publication Type: Journal article
Publication year: 2018
Journal
Book Volume: 9
Pages Range: 31-38
DOI: 10.1016/j.pacs.2017.12.002
Abstract
Pulsed laser diodes may offer a smaller, less expensive alternative to conventional optoacoustic laser sources; however they do not provide pulse rates faster than a few tens of kHz and emit at wavelengths only within the near-infrared region. We investigated whether continuous wave (CW) laser diodes, which are available in visible and near-infrared regions, can be good optoacoustic light sources when overdriven with a peak current >40-fold higher than the CW absolute maximum. We found that overdriven CW diodes provided ∼10 ns pulses of ∼200 nJ/pulse and repetition rates higher than 600 kHz without being damaged, outperforming many pulsed laser diodes. Using this system, we obtained images of phantoms and mouse ear and human arm in vivo, confirming their use in optoacoustic imaging and sensing.
Involved external institutions
Germany (DE)How to cite
APA:
Stylogiannis, A., Prade, L., Buehler, A., Aguirre, J., Sergiadis, G., & Ntziachristos, V. (2018). Continuous wave laser diodes enable fast optoacoustic imaging. Photoacoustics, 9, 31-38. https://doi.org/10.1016/j.pacs.2017.12.002
MLA:
Stylogiannis, Antonios, et al. "Continuous wave laser diodes enable fast optoacoustic imaging." Photoacoustics 9 (2018): 31-38.
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