OPTICAL MATERIALS / TYPES OF GLASS

PROMET International Inc. commonly uses these standard materials for most orders of optical components. Other materials not listed here may also be available upon request.

OPTICAL MATERIALS
Material Name	Refractive Index (nd)	Refractive Index (ne)
OPTICAL GLASS
BK7	nd = 1.517 at 588nm	ne = 1.509 at 546nm
BaF51	nd = 1.652 at 588nm	ne = 1.656 at 546nm
BaK1	nd = 1.573 at 588nm	ne = 1.575 at 546nm
BaSF51	nd = 1.724 at 588nm	ne = 1.728 at 546nm
BaSF52	nd = 1.702 at 588nm	ne = 1.706 at 546nm
CaF2 (Amorphous)	nd = 1.434 at 588nm	ne = 1.435 at 546nm
F2	nd = 1.620 at 588nm	ne = 1.624 at 546nm
FK5	nd = 1.487 at 588nm	ne = 1.489 at 546nm
K5	nd = 1.522 at 588nm	ne = 1.525 at 546nm
LaF2	nd = 1.744 at 588nm	ne = 1.748 at 546nm
LaF3	nd = 1.717 at 588nm	ne = 1.721 at 546nm
LaFN7	nd = 1.750 at 588nm	ne = 1.755 at 546nm
LaKN13	nd = 1.694 at 588nm	ne = 1.670 at 546nm
LaKN22	nd = 1.651 at 588nm	ne = 1.654 at 546nm
LF5	nd = 1.581 at 588nm	ne = 1.584 at 546nm
LLF2	nd = 1.541 at 588nm	ne = 1.543 at 546nm
LLF6	nd = 1.532 at 588nm	ne = 1.534 at 546nm
PSK3	nd = 1.552 at 588nm	ne = 1.554 at 546nm
SF2	nd = 1.648 at 588nm	ne = 1.652 at 546nm
SF4	nd = 1.755 at 588nm	ne = 1.762 at 546nm
SF11	nd = 1.785 at 588nm	ne = 1.792 at 546nm
SF14	nd = 1.762 at 588nm	ne = 1.769 at 546nm
SK15	nd = 1.623 at 588nm	ne = 1.626 at 546nm
SK16	nd = 1.620 at 588nm	ne = 1.623 at 546nm
SK18A	nd = 1.639 at 588nm	ne = 1.641 at 546nm
SSKN5	nd = 1.658 at 588nm	ne = 1.662 at 546nm
Colored Glass
Float Glass
OPTICAL CRYSTAL
Sapphire	nd = 1.768 at 588nm	ne = 1.771 at 546nm
Quartz	nd = 1.459 at 588nm	ne = 1.460 at 546nm
OTHER MATERIALS
Fused Silica	nd = 1.458 at 588nm	ne = 1.460 at 546nm
Fused Silica (UV grade)	nd = 1.459 at 588nm	ne = 1.460 at 546nm
ZERODUR ®	nd = 1.542 at 588nm	ne = 1.544 at 546nm

* Please note that our current capabilities do not include plastic optics.