Atom lasers are critical for atom holography.
Similar to conventional holography, atom holography uses the diffraction of atoms.
The De Broglie wavelength of the atoms is much smaller than the wavelength of light, so atom lasers can create much higher resolution holographic images.
Laser diodes are the most common type of lasers produced, with a wide range of uses that include fiber optic communications, barcode readers, laser pointers, CD/DVD/Blu-ray disc reading/recording, laser printing, laser scanning and light beam illumination.
Diode lasers are a class of lasers that generate laser radiation through a semiconductor.