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We have developed new structured wavelength-conversion devices with stacked plates of β-BaB2O4 using the room-temperature bonding technique. The output beam quality is improved, while the generated UV power becomes lower when thinner plates are used.
We have developed a new structured wavelength-conversion device with stacked plates of β-BaB2O4 using the room-temperature-bonding technique. It generates higher ultraviolet power and improves the output beam quality compared with the conventional devices.