1. Materials Feasibility for Laser Processing CO2 Laser(10.6 µm): Materials Feasibility 1. Organic Materials: Polymers (Plastics), Wood Based Products 2. Inorganic Non-metals: Glasses, Ceramics, Diamond, Silicon 3. Steels: Mild & Carbon Steels; Stainless & Alloy Steels 4. Non-ferrous Metals & Alloys: Titanium & Alloys Aluminum & Alloys Copper & Brass Gold & Silver Good Glasses & Ceramics: Good Excellent Very poor for high-reflective Aluminum, Copper, Brass, Gold & Silver

2. Fundamental YAG Laser(1.06 µm): Materials Feasibility 1. Organic Materials: Polymers(Plastics), Wood Based Products 2. Inorganic Non-metals: Glasses, Ceramics, Diamond, Silicon 3. Steels: Mild & Carbon Steels; Stainless & Alloy Steels 4. Non-ferrous Metals & Alloys: Titanium & Alloys Aluminum & Alloys Copper & Brass Gold & Silver No absorption Diamond and Silcion: Good; Al2O3 Ceramic: Better than with CO2 laser Good for thin section fine detailed machining; power limited for thick section. Good for high-reflective metals: aluminum, copper, brass, gold & silver. Glasses: No absorption Materials Feasibility for Laser Processing

3. Green Laser(0.53 µm): Materials Feasibility 1. Organic Materials: Polymers(Plastics), Wood Based Products 2. Inorganic Non-metals: Glasses, Ceramics, Diamond, Silicon 3. Steels: Mild & Carbon Steels; Stainless & Alloy Steels 4. Non-ferrous Metals & Alloys: Titanium & Alloys Aluminum & Alloys Copper & Brass Gold & Silver No absorption Diamond & Al2O3 Ceramic : Very good Very good but usually not cost-effective. Very good for high-reflective metals: aluminum, copper, brass, gold & silver. Glasses: No absorption; Silicon: Good Materials Feasibility for Laser Processing

4. UV Laser(0.355 µm): Materials Feasibility 1. Organic Materials: Polymers(Plastics), Wood Based Products 2. Inorganic Non-metals: Glasses, Ceramics, Diamond, Silicon 3. Steels: Mild & Carbon Steels; Stainless & Alloy Steels 4. Non-ferrous Metals & Alloys: Titanium & Alloys Aluminum & Alloys Copper & Brass Gold & Silver Not cost-effective Good for high-reflective metals: aluminum, copper, brass, gold & silver. Usually not cost-effective Very good Glasses: Low absorption; Silicon & Al2O3 Ceramic: Good Diamond: Good but may not be cost-effective Materials Feasibility for Laser Processing

5. UV Laser(0.266 µm): Materials Feasibility 1. Organic Materials: Polymers (Plastics), Wood Based Products 2. Inorganic Non-metals: Glasses, Ceramics, Diamond, Silicon 3. Steels: Mild & Carbon Steels; Stainless & Alloy Steels 4. Non-ferrous Metals & Alloys: Titanium & Alloys Aluminum & Alloys Copper & Brass Gold & Silver Not cost-effective Good for high-reflective metals: aluminum, copper, brass, gold & silver. Usually not cost-effective Glasses & Silicon: high absorption Diamond & Al2O3 Ceramic: Good but may not be cost-effective Very Good Materials Feasibility for Laser Processing