Applications of wave optics

The spectrometer:

A spectrometer is a kind of equipment that is used for the purpose to identify materials by intensely measuring light over a specific portion of the electromagnetic portion. The instrument produces lines, which are very much similar to the lines produced during diffraction grating as covered in a previous atom, and then this equipments measures the intensities and wavelengths of those lines.

In order to reflect the light which is emitted from the object onto a diffraction grating, a source of light is placed in front of the mirror. The lines that are produced by the diffraction grating are included in the previous atom, in the same way, the spectrometer instrument generates lines, and then measures the wavelength and intensity of those lines. The use of this type of instrument is done during spectroscopy.


Spectroscopy is a branch of optics that studies the interaction between radiated energy and matter. This radiated energy used is a function of frequency and wavelength. Every type has its individual frequency. In order to use spectroscopy by the observer to identify the atoms, the spectrometer produces a reading, and therefore the molecules that make up that object.


Spectroscopes have a wide range of applications including chemistry and astronomy also. They use a photodetector, a movable slit, and diffraction grating. A computer is required to control all of these elements, which records the findings. Material is heated to incandescent and it emits a light that is characteristic of its atomic makeup. The process of precision optics manufacturing and optical prism manufacturing is followed by best optical lenses manufacturer for manufacturing process. Each atom has its own unique spectroscopic ‘fingerprint’. For example, a double yellow band is produced by sodium.

LCD (Liquid Crystal Display):

The liquid crystals do not emit light by themselves, but in order to emit light, the display uses the properties of the crystal to modulate light. By using a large number of very small pixels, LCDs can be used to display arbitrary images, as in a computer monitor or television, or they can be used to display still images, like a digital clock.

LCDs do not use phosphors, but the new cathode ray tube (CRT) and plasma displays do use phosphors. Image burn-in occurs when an image is displayed so often or for so long that the outline of the image can be seen even when the display is turned off. Image persistence is similar, but once the display is turned off the outline fades away shortly.

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