Abstract
Three-dimensional colloidal photonic crystal can be utilized as optical pulse control devices for ultra-short laser pulses as short as a few tens of femtosecond. Using a recently developed colloidal crystallization method, a few centimetre sized single colloidal crystals were made. By shining femtosecod laser pulses onto one hundred micrometer thick colloidal crystal, we confirmed a pulse shape change clearly. Under a collaborative project within Japan Aerospace Exploration Agency, we have grown such colloidal photonic crystals at the international space station, successfully. Optical and mechanical properties of the colloidal photonic crystal will be discussed in more detail to figure out their industrial high power laser application.
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