How LiDAR Measures Distance with Light
LiDAR measures distance with light travel time or phase. See how scanning produces point clouds and why weather, surfaces and geometry matter.
Photonics, Lasers & Imaging
Photonics, Lasers & Imaging
How do lasers, thermal cameras, lenses, fiber optics and LiDAR use light? Understand what these tools measure, where they help and where they have limits.
Photonics, Lasers & Imaging
How a Camera Sensor Converts Photons into Pixels
A camera sensor turns photons into pixel charge and digital values. Learn the path through exposure, readout, color reconstruction and noise.
Photonics, Lasers & Imaging
How a Laser Produces a Narrow, Coherent Beam
A laser uses stimulated emission and a resonator to build a narrow coherent beam. Follow population inversion, feedback, modes and limits.
Photonics, Lasers & Imaging
How Fiber-Optic Cables Guide Light
Fiber-optic cables guide light through a core and cladding. Learn how modes, total internal reflection, dispersion and bending shape data links.
Photonics, Lasers & Imaging
How a Thermal Camera Turns Invisible Infrared into a Picture
A thermal camera does not need visible light to form an image. It measures infrared radiation arriving from a scene, […]