Semiconductor-on-diamond substrates and methods for making such substrates are provided. The method includes organizing a number of classifiers of data into a hierarchical structure and organizing the data into the hierarchical data structure according to the classifiers to which the data is linked. At least one light source is used to illuminate the rendered images on the display panel. The duty cycle of the pulsed current is selected to achieve a time-averaged operating condition, thus the time averaged pump power can be reduced in a linear fashion well below the capability of a continuous wave system.