光力システムにおける窒素を用いた高効率超音速化学酸素沃素レーザー

抄録

The Chemical Oxygen lodine Laser (COIL) has unique characteristics and it is expected to be used in the energy field. Usually, Lasing threshold of COIL is decreased by the supersonic expansion. To obtain the high stagnation pressure at the plenum, helium is added as a buffer gas. However, using large amount of expensive helium is out of the question for industrial applications. We achieved a high efficiency operation of COIL using nitrogen as buffer gas. Obtained overall efficiency was 23.5% and it is the highest among the supersonic COILS using nitrogen gas a buffer gas.