The phrase "a different optical" is not correct in standard written English as it lacks a noun to complete the thought.
It can be used in contexts where you are comparing or contrasting different optical devices or phenomena, but it needs to be part of a larger, complete phrase.
Example: "We need to consider a different optical approach to solve this problem."
Alternatives: "another optical" or "an alternative optical".
Each plays a different optical trick.
The colors shift noticeably from bluish to pinkish across the bumps, giving them powdery shadows, a different optical glow.
Unlike electronic switches, the mirrors do not need to be modified if a different optical wavelength or transfer protocol is used.
"Every person needs a different optical mode to get the best possible experience in VR," said Gordon Wetzstein, assistant professor of electrical engineering and senior author of research published in Proceedings of the National Academy of Sciences.
The constellation consists of four low Earth-orbiting nanosatellites, divided into pairs, with each member of a pair having a different optical filter.
This effect has been exploited to create a chemical sensor, in fact optical measurements have evidenced that the composite structure presents a different optical response as a function of the solvent applied on the surface.
However, with epi-illumination light microscopy the green scales have a rather different optical appearance, especially a different gloss, indicating the presence of dissimilar photonic structures.
And each fluctuation produces a slightly different optical hit and temperature.
This is mainly because the truck consists of several parts, and each one generates a slightly different optical flow vector, especially in terms of its modulus.
If A and B have different optical properties for example, if they differ in colour or in the absorption of ultraviolet light this property can be used to measure the ratio [A]/[B], commonly by using an instrument called a spectrophotometer.
To measure the scattering matrix elements we use a number of different optical components such as polarizers, a quarter-wave plate, and an electro-optic modulator.
