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A hollow optical fiber for ultraviolet light transmission, lined with an aluminum thin film that exhibits high reflectivity in the ultraviolet range.
■Transmission of visible light is also possible. ■By vacuuming the hollow core or filling it with inert gas, transmission of vacuum ultraviolet light with a wavelength of 200 nm or less is also possible.
Hollow fiber with a silver and polymer coating on the inner surface of a flexible glass capillary tube.
■Excellent chemical stability, mechanical durability, and heat resistance ■Compatible with high-power lasers for medical and industrial applications, including dental lasers, both pulsed and continuous wave (CW) oscillation.
Hollow optical fiber exhibiting broad transmission characteristics in the visible, near-infrared, or infrared regions.
Depending on the application, interior coatings of aluminum, silver, and polymer are applied.
High-energy pulse transmission of nanosecond-order Q-switched Nd:YAG laser is possible.
■ For the fundamental wave and 2nd and 3rd harmonics, fibers coated with high-durability silver are suitable. ■ For the 4th harmonic, fibers coated with aluminum are suitable. ■ For femtosecond pulses, transmission is also possible with slight pulse stretching.
Hollow fiber for terahertz wave transmission
■Flexible glass capillary tubes or plastic tubes with an inner silver thin film lining ■Broad characteristics are obtained in the terahertz region, enabling energy transmission at a single wavelength as well as spectral applications.
