Open AccessConfocal laser feedback microscopy for in‐depth imaging applications
Author(s) -
Mowla A.,
Taimre T.,
Bertling K.,
Wilson S.,
Rakić A. D.
Publication year - 2018
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2017.4333
Subject(s) - optics , laser , materials science , microscopy , microscope , interferometry , confocal , confocal microscopy , laser microscopy , interference microscopy , laser scanning , physics
We propose confocal laser feedback microscopy for in‐depth imaging of highly scattering samples. This technique provides a compact configuration for microscopy in reflectance mode; it is based on laser feedback interferometry which is a sensing technique where the laser acts as both transmitter and receiver of the beam. Operating at 850 nm, it offers an ideal platform for non‐invasive and in vivo imaging of soft biological tissues. To explore the technique, the authors performed microscopic imaging of micro‐glass‐spheres (with diameter sizes of 10–20 µm) deep within an agar gel sample, at depth of 0.43 mm from the surface. Experimental results show the feasibility of a compact, low‐cost, and simple laser‐scanning microscope with possible biomedical imaging applications.