Micro-domain optical control
The aim of this subject is the quantum control of the stored optical
energy in laser gain media, which should improve the performance of
microchip lasers upto giant microphotonics. For example, the limitation
of the frequency domain of pumping source (this is the "direct-pumping"
technology) can elevate laser oscillation efficiency: we overcome 76% of
optical-optical efficiency that had been conventionally considered to be
a quantum limit of Nd-lasers.
Micro-domain optical control is based on the fundamental research of
solid-state optical materials. Thus we carefully started to re-examining
many properties including what is considered to be well-known. From
these experiences now we consider that it is necessary to find
evaluation methods for various optical materials, because we convince
there should be still unknown physics that influence laser performances.
Moreover, it will give design instructions to researches concerning
with the micro-domain structural control, and solutions in order to
evaluate novel materials that was born by means of the micro-domain