Abstract
Photoacoustic endoscopy (PAE) is an emerging imaging modality, which offers a high imaging penetration and a high optical contrast in soft tissue. Most of the developed endoscopic photoacoustic sensing systems use miniaturized contact ultrasound transducers or complex optical approaches. In this work, a new fiber-based detection technique using speckle analysis for contact-free signal detection is presented. Phantom and ex vivo experiments are performed in transmission and reflection mode for proof of concept. In summary, the potential of the technique for endoscopic photoacoustic signal detection is demonstrated. The new technique might help in future to broaden the applications of PAE in imaging or guiding minimally invasive laser procedures.
| Original language | English |
|---|---|
| Article number | e201900130 |
| Journal | Journal of Biophotonics |
| Volume | 12 |
| Issue number | 12 |
| DOIs | |
| State | Published - 1 Dec 2019 |
Bibliographical note
Publisher Copyright:© 2019 The Authors. Journal of Biophotonics published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Funding
This work was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)—project number 397972545. Also funding of the Erlangen Graduate School in Advanced Optical Technologies (SAOT) by the DFG in the framework of the German excellence initiative is gratefully acknowledged.
| Funders | Funder number |
|---|---|
| Deutsche Forschungsgemeinschaft | 397972545 |
| Erlangen Graduate School of Advanced Optical Technologies |
Keywords
- laser surgery
- photoacoustic endoscopy
- remote sensing
- speckle