For very large particles (greater than 100 micrometers) this may be the best method because it is least sensitive to other types of optical interferences.
It is very colourful, though the iridescent parts of the wings do not have pigment; rather the colours originate from optical interference.
An air-cuticle multilayer in the scales creates optical interference.
In this context, "interference" refers to interference between quantum events (transitions) and not optical interference of any kind.
These requirements are inter-related, and it is essential to understand the nature of optical interference to see this.
Due to optical interference of the two waves, a fringe pattern is revealed.
It is well known that optical interference often is a major problem in laser-based gas spectroscopy .
The basis of this technique stems solely from optical interference.
For example, instruments that rely on optical interference cannot resolve features that are less than some fraction of the operating wavelength.
The effect only lasted a second: his image breaking into a moire pattern of optical interference, then righting itself again into a seemingly solid man.