Projection system with a copper chloride vapor image amplifier

The possibility of using the active medium of a copper chloride vapor laser for image amplification in a projection microscope system is demonstrated. The dependences of the gain on the temperature, buffer gas pressure, and input signal level were investigated. The measured values of the gain per single pass through the active medium were ~10⁴. The maximum output power in the image-carrying beam was 2.5 W. The resolution of the system was close to the diffraction limit.