Phase-referenced probe interferometer for biological surface profiling and displacement measurements.
We present a probe-based, phase-referenced low coherence interferometer in which the reference field is provided by a fiber end reflection. A gradient-index microlens focuses light onto a sample and collects reflected light. We use the probe interferometer to measure surface profiles of the compound eye of a housefly (Musca domestica) and measure nanometer-scale vibrations in a test sample.
Fang-Yen
Christopher
C
G. R. Harrison Spectroscopy Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
Chu
Mark C
MC
Seung
H Sebastian
HS
Dasari
Ramachandra R
RR
Feld
Michael S
MS
D001704:Biopolymers / Q000737:chemistry*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007368:Interferometry / Q000295:instrumentation*; D015336:Molecular Probe Techniques / Q000295:instrumentation*; D012031:Refractometry / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013499:Surface Properties; D014159:Transducers
D001704:Biopolymers