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All-optical optoacoustic microscope based on wideband pulse interferometry.
Opt. Lett. 41, 1953-1956 (2016)
Optical and optoacoustic (photoacoustic) microscopy have been recently joined in hybrid implementations that resolve extended tissue contrast compared to each modality alone. Nevertheless, the application of the hybrid technique is limited by the requirement to combine an optical objective with ultrasound detection collecting signal from the same micro-volume. We present an all-optical optoacoustic microscope based on a pi-phase-shifted fiber Bragg grating (π-FBG) with coherence-restored pulsed interferometry (CRPI) used as the interrogation method. The sensor offers an ultra-small footprint and achieved higher sensitivity over piezoelectric transducers of similar size. We characterize the spectral bandwidth of the ultrasound detector and interrogate the imaging performance on phantoms and tissues. We show the first optoacoustic images of biological specimen recorded with π-FBG sensors. We discuss the potential uses of π-FBG sensors based on CRPI.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Resolution Photoacoustic Microscopy; Fiber Sensors; Ultrasound; Tomography; Phase
Language
english
Publication Year
2016
HGF-reported in Year
2016
ISSN (print) / ISBN
0146-9592
e-ISSN
1539-4794
Journal
Optics Letters
Quellenangaben
Volume: 41,
Issue: 9,
Pages: 1953-1956
Publisher
Optical Society of America (OSA)
Publishing Place
Washington
Reviewing status
Peer reviewed
Institute(s)
Institute of Biological and Medical Imaging (IBMI)
POF-Topic(s)
30205 - Bioengineering and Digital Health
Research field(s)
Enabling and Novel Technologies
PSP Element(s)
G-505500-001
WOS ID
WOS:000375073900015
Scopus ID
84965064077
Erfassungsdatum
2016-04-21