Monte Carlo method for photon transport

Monte Carlo Method for Photon Transport is a way to understand how light is reflected and absorbed by different kinds of surfaces. Imagine a room filled with lots of mirrors and you have a flashlight. When you turn the flashlight on and shine it around the room, some of the light will be reflected off the mirrors and some will be absorbed by the walls. The Monte Carlo Method is a way of using math to figure out what happens when the light hits different surfaces in the room - how much gets reflected and absorbed, and where it goes. It works by using a computer to simulate what happens when many tiny particles, called photons, go through the room. The computer assigns each photon, a “life”, starting at the flashlight, and then simulates what happens to each photon as it travels around the room, interacting with the mirrors and walls. At the end of the simulation, the computer can tell us how much light was reflected and absorbed by each surface.