An underwater, multispectral light source

Group members: Bhrugurajsinh Pradyumansinh Chudasama, Candice Murray, Anirban Chatterjee

Background

Circuit Design

Optical Design

Underwater light sources

Absorption of light in water Water exhibits much higher absorption of photons than air at some wavelengths of light. This can be seen in the graph below. File:D65waterabsorption.jpg Increasing the depth of the water increases the absorption, which can be modeled by the absorption equation $I(x)=I(x_o)*exp(-\alpha (x-x_o))$ where $\alpha$ is the absorption coefficient for water at the wavelength of interest and $I(x)$ and $I(x_o)$ are the intensities at the final and starting locations, respectively. Scattering in water'