College of Science and Health Theses and Dissertations

Date of Award

Fall 11-22-2016

Degree Type


Degree Name

Master of Science (MS)



First Advisor

Raul Barrera, PhD

Second Advisor

Mary Bridget Kustusch, PhD


A laser of 0.800 mm at 100 fs is utilized in obtaining a b coefficient in a GaP crystal associated with double photon absorption. Data is collected for the incident power of the laser for both single and double photon absorption, and it is plotted against the signal generated in the photodiode containing the GaP crystal. The slope of such a plot is employed in calculating b with equations derived in the theoretical model that is unique to the present work. The data for single photon absorption is utilized in calculating the thickness of the GaP crystal, while the data for double photon absorption is directly utilized in the calculation of b coefficient. The present work yields a numerical value for the absorption coefficient for double photon absorption, b.

SLP Collection


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Physics Commons