copper | Copper | Potassium nitrate | Copper Canyon Press | Copper Mountain (Colorado) | Copper Canyon | Svensson's Copper Underwing | Copper Scroll | Copper River and Northwestern Railway | Anaconda Copper | The Adventure of the Copper Beeches | Sodium nitrate | Revere Copper Company | Large Copper | Copper Kings | Copper extraction techniques | copper beech | Calcium copper titanate | Boston and Montana Consolidated Copper and Silver Mining Company | Ashio Copper Mine | Zangezur Copper and Molybdenum Combine | sodium nitrate | Schuyler Copper Mine | Rosemont Copper | Oxygen-free copper | large copper | Indian copper plate inscriptions | Gallium nitrate | Corocoro United Copper Mines | Copper (TV series) |
Operating temperature can be further reduced by the use of copper nitrate or copper acetylacetonate, whose vapors give peak laser output power at 180 and 40 degrees C, respectively.