| CaF2-w-49x6 49 mm Dia. CaF2 Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | CaF2 | Circular |
| CaF2-W-101.6x12 101.6 mm Dia. CaF2 Flat Window; t=12.7mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | CaF2 | Circular |
| BF-W-9.5-1 9.5 mm Dia. BaF2 Flat Window; t=1mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | BAF2 | Circular |
| BF-W-12.7-0.9 12.7 mm Dia. BaF2 Flat Window; t=0.9mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | BAF2 | Circular |
| BF-W-25.4-4 25.4 mm Dia. BaF2 Flat Window; t=4mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | BAF2 | Circular |
| FS-w-12.7-1 12.7 mm Dia. UVFS Flat Window; t=1mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| GE-W-25.4-4 25.4 mm Dia. Germanium Flat Window; t=4mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Germanium | Circular |
| GE-W-50.8-4 50.8 mm Dia. Germanium Flat Window; t=4mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Germanium | Circular |
| Ge-W-170-5 170 mm Dia. Germanium Flat Window; t=5mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Germanium | Circular |
| KB-W-12.7x2 12.7 mm Dia. KBr Flat Window; t=2mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| KB-W-49x6 49 mm Dia. KBr Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| KC-W-50.8-5 50.8 mm Dia. KCl Flat Window; t=5mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| NC-W-30-4 30 mm Dia. NaCl Flat Window; t=4mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| MF-W-25.4x1 25.4 mm Dia. MgF2 Flat Window; t=1mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Magnesium Fluoride | Circular |
| MF-W-38.1x3 38.1 mm Dia. MgF2 Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Magnesium Fluoride | Circular |
| AL-W-50.8-4 50.8 mm Dia. Sapphire Flat Window; t=4mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Al2O3 | Circular |
| AL-W-50.8-5 50.8 mm Dia. Sapphire Flat Window; t=5mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Al2O3 | Circular |
| AL-W-63.5-6 63.5 mm Dia. Sapphire Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Al2O3 | Circular |
| SI-W-25.4-2 25.4 mm Dia. Silicon Flat Window; t=2mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Silicon | Circular |
| SI-W-25.4-5 25.4 mm Dia. Silicon Flat Window; t=5mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Silicon | Circular |
| SI-W-38.1-5 38.1 mm Dia. Silicon Flat Window; t=5mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Silicon | Circular |
| SI-W-50.8-5 50.8 mm Dia. Silicon Flat Window; t=5mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Silicon | Circular |
| SI-W-50.8-6 50.8 mm Dia. Silicon Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Silicon | Circular |
| SI-W-63.5-6 63.5 mm Dia. Silicon Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Silicon | Circular |
| ZnSe-W-12.7-2 12.7 mm Dia. ZnSe Flat Window; t=2mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | ZnSe | Circular |
| ZnSe-W-25.4-2 25.4 mm Dia. ZnSe Flat Window; t=2mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | ZnSe | Circular |
| CaF2-W-25.4x1 25.4 mm Dia. CaF2 Flat Window; t=1mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | CaF2 | Circular |
| CaF2-W-25.4x4 25.4 mm Dia. CaF2 Flat Window; t=4mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | CaF2 | Circular |
| CaF2-W-50.8x4 50.8 mm Dia. CaF2 Flat Window; t=4mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | CaF2 | Circular |
| CaF2-W-50.8x5 50.8 mm Dia. CaF2 Flat Window; t=5mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | CaF2 | Circular |
| CaF2-W-101.6x10 101.6 mm Dia. CaF2 Flat Window; t=10mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | CaF2 | Circular |
| BF-W-25.4-1 25.4 mm Dia. BaF2 Flat Window; t=1mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | BAF2 | Circular |
| BF-W-101.6-8 101.6 mm Dia. BaF2 Flat Window; t=8mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | BAF2 | Circular |
| FS-w-63.5-6 63.5 mm Dia. UVFS Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| FS-w-63.5-8 63.5 mm Dia. UVFS Flat Window; t=8mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| GE-W-10-1 10 mm Dia. Germanium Flat Window; t=1mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Germanium | Circular |
| GE-W-25.4-3 25.4 mm Dia. Germanium Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Germanium | Circular |
| GE-W-38.1-1 38.1 mm Dia. Germanium Flat Window; t=1mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Germanium | Circular |
| GE-W-50.8-3 50.8 mm Dia. Germanium Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Germanium | Circular |
| GE-W-63.5-3 63.5 mm Dia. Germanium Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Germanium | Circular |
| G-W-165-8 165 mm Dia. Germanium Flat Window; t=8mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Germanium | Circular |
| KB-W-25.4x3 25.4 mm Dia. KBr Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| KB-W-25.4x4 25.4 mm Dia. KBr Flat Window; t=4mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| KB-W-38.1x3 38.1 mm Dia. KBr Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| KB-W-101.6x12 101.6 mm Dia. KBr Flat Window; t=12.7mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| KC-W-38.1-3 38.1 mm Dia. KCl Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| NC-W-25.4-2 25.4 mm Dia. NaCl Flat Window; t=2mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| NC-W-25.4-6 25.4 mm Dia. NaCl Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| NC-W-63.5-6 63.5 mm Dia. NaCl Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| NC-W-38.5x19.5x4 38.5 x 19.5 mm NaCl Flat Window; t=4mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Rectangular |
| AL-W-90-6 90 mm Dia. Sapphire Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Al2O3 | Circular |
| SI-W-152.4-6 152.4 mm Dia. Silicon Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Silicon | Circular |
| SI-W-18.5x18.5x0.4 18.5 x 18.5 mm Silicon Flat Window; t=0.4mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Silicon | Rectangular |
| ZnSe-W-38.1-3 38.1 mm Dia. ZnSe Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | ZnSe | Circular |
| CaF2-W-25.4x2 25.4 mm Dia. CaF2 Flat Window; t=2mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | CaF2 | Circular |
| 68-511 12.5 mm Dia. Zinc Selenide Protective Flat Window; t=1mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 68-516 12.5 mm Dia. Zinc Selenide Protective Flat Window; t=1mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 68-499 12.5 mm Dia. Zinc Selenide Protective Flat Window; t=2mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-405 12.7 mm Dia. Zinc Selenide Protective Flat Window; t=1mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-419 12.7 mm Dia. Zinc Selenide Protective Flat Window; t=1mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 63-210 20 mm Dia. Zinc Selenide Protective Flat Window; t=2mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 68-512 25 mm Dia. Zinc Selenide Protective Flat Window; t=1mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 68-517 25 mm Dia. Zinc Selenide Protective Flat Window; t=1mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 68-518 25 mm Dia. Zinc Selenide Protective Flat Window; t=2mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 47-938 25 mm Dia. Zinc Selenide Protective Flat Window; t=3mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 68-501 25 mm Dia. Zinc Selenide Protective Flat Window; t=3mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-407 25 mm Dia. Zinc Selenide Protective Flat Window; t=5mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-421 25 mm Dia. Zinc Selenide Protective Flat Window; t=5mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-409 25.4 mm Dia. Zinc Selenide Protective Flat Window; t=2mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-434 25.4 mm Dia. Zinc Selenide Protective Flat Window; t=2mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-410 25.4 mm Dia. Zinc Selenide Protective Flat Window; t=3mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-437 25.4 mm Dia. Zinc Selenide Protective Flat Window; t=5mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 63-211 30 mm Dia. Zinc Selenide Protective Flat Window; t=3mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 68-502 30 mm Dia. Zinc Selenide Protective Flat Window; t=3mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 63-212 40 mm Dia. Zinc Selenide Protective Flat Window; t=4mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 68-503 40 mm Dia. Zinc Selenide Protective Flat Window; t=4mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 68-514 50 mm Dia. Zinc Selenide Protective Flat Window; t=1mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 68-520 50 mm Dia. Zinc Selenide Protective Flat Window; t=2mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 68-504 50 mm Dia. Zinc Selenide Protective Flat Window; t=3mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-438 50 mm Dia. Zinc Selenide Protective Flat Window; t=5mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-413 50.8 mm Dia. Zinc Selenide Protective Flat Window; t=1mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-414 50.8 mm Dia. Zinc Selenide Protective Flat Window; t=2mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-464 50.8 mm Dia. Zinc Selenide Protective Flat Window; t=2mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-415 50.8 mm Dia. Zinc Selenide Protective Flat Window; t=3mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-416 50.8 mm Dia. Zinc Selenide Protective Flat Window; t=5mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-467 50.8 mm Dia. Zinc Selenide Protective Flat Window; t=5mm BBAR 8-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 48-855 75 mm Dia. Zinc Selenide Protective Flat Window; t=6mm BBAR 3-12µm | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 34-522 5 mm Dia. Borofloat33 Protective Flat Window; t=1.1mm Hydrophobic 425-675nm | Optics | Window | Flat Window | Edmund Optics | Borofloat33 | Circular |
| CaF2-W-38.1x1 38.1 mm Dia. CaF2 Flat Window; t=1mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | CaF2 | Circular |
| CaF2-W-38.1x2 38.1 mm Dia. CaF2 Flat Window; t=2mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | CaF2 | Circular |
| BF-W-12.7-2 12.7 mm Dia. BaF2 Flat Window; t=2mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | BAF2 | Circular |
| BF-W-38.1-3 38.1 mm Dia. BaF2 Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | BAF2 | Circular |
| BF-W-38.1-4 38.1 mm Dia. BaF2 Flat Window; t=4mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | BAF2 | Circular |
| BaF2-W-49x3 49 mm Dia. BaF2 Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | BAF2 | Circular |
| FS-w-25.4-1 25.4 mm Dia. UVFS Flat Window; t=1mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| FS-w-50.8-3 50.8 mm Dia. UVFS Flat Window; t=3mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| FS-w-50.8-5 50.8 mm Dia. UVFS Flat Window; t=5mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | UVFS | Circular |
| GE-W-13x2 13 mm Dia. Germanium Flat Window; t=2mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Germanium | Circular |
| GE-W-25.4-2 25.4 mm Dia. Germanium Flat Window; t=2mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Germanium | Circular |
| GE-W-38.1-4 38.1 mm Dia. Germanium Flat Window; t=4mm Uncoated | Optics | Window | Flat Window | Alkor Technologies | Germanium | Circular |