Optics
Holography
Holography is a technique that records and reconstructs light fields to create three-dimensional images, utilizing the principles of interference and diffraction. Developed by physicist Dennis Gabor in 1948, it has applications in data storage, security, microscopy, and art.
Visible Spectrum
The visible spectrum is the segment of the electromagnetic spectrum that the human eye can perceive, spanning approximately 380 to 700 nanometers (about 430–770 terahertz). It comprises the colors violet through red and underlies human color perception, photometry, and colorimetry.