Differential interference contrast dic microscopy also known as nomarski interference contrast nic or nomarski microscopy is an optical microscopy technique used to enhance the contrast in unstained transparent samples dic works on the principle of interferometry to gain information about the optical path length of the sample to see otherwise invisible features.
Dic transmitted light microscopy.
In this way it is possible to observe living cells and organisms with adequate contrast and resolution.
With dic microscopy two slightly separate plane polarized beams of light are used to create a 3d like image of the unstained specimen.
Differential interference contrast.
When compared to the typical configuration employed in transmitted light microscopy the critical instrument parameters for reflected or episcopic light differential interference contrast dic are much simpler primarily because only a single birefringent nomarski or wollaston prism is required and the objective serves as.
Directly transmitted light which did not.
Differential interference contrast dic optical components can be installed on virtually any brightfield transmitted reflected or inverted microscope provided the instrument is able to accept polarizing filters and the specially designed condenser and objective prisms together with the housings necessary to perform the technique.
Dic microscopy is a technique which uses gradients in the optical path length and phase shifts to make phase objects visible under the light microscope.