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Rollins Imaging Systems


Optical coherence tomography (OCT) is a method, first described in 1990, which can image several millimeters into a sample with 10µm resolution. By sending low-coherence light into a sample and interfering the reflection with a reference beam, the structure of the sample can be determined. Multiple scans are stitched together to create volumetric images.

SD-OCT: Spectral Domain Optical Coherence Tomography

Our two SD-OCT systems have approximately 10µm axial resolution and 10µm lateral. Minimum effective pixel size is approximately 6µm axial and 5µm lateral.

PS-OCT: Polarization Sensitive Optical Coherence Tomography

PS-OCT allows volumetric imaging of birefringence in addition to structure. This is most useful for determining fiber orientation of samples. Our PS-OCT has an axial resolution of 10µm and a lateral resolution of 10µm

SS-OCT: Swept Source Optical Coherence Tomography

The SS-OCT system is currently not operational. 



The lightsheet system allows minimum 3µm axial resolution (depending on sampling) and 7µm lateral.

OCM: Optical Coherence Microscopy

Our OCM system is much like OCT, but has an axial resolution of 2µm.