Ultra-High Purity Crystals supplied by All-Chemie

All-Chemie, Ltd.
501-D La Mesa Rd.
Mount Pleasant,
SC 29464

phone: 843-884-4400

fax: 843.884.0560

All-Chemie: Crystals

Type of crystal	Maximum dimensions
NaCl	Dia 140 x 50mm
KBr	Dia 140 x 50
KCl	Dia 400 x 50
CaF2	Dia 220 x 40
BaF2	Dia 220 x 40
MgF2	Dia 70 x 40
LiF	Dia 100 x 40
ZnSe	Dia 70 x 20
Si	Dia 200 x 50
Ge	Dia 100 x 50
Sapphire, Shaped Sapphire	Dia 190 x 20, 150 x 150 x 20
Bi12SiO20, Bi12GeO20	30 x 30 x 100
KDP, DKDP	on request

Coatings for Laser and Precision Optics

Type	Sub-strate	Max Size, mm	Wave-lengths, nm	Reflect-ance, %	Trans-mittance, %	Laser Durability, J/cm²
1. Laser Coatings for UV Region
Anti-Reflective	Fused Silica, CaF₂, LiF	Up to 200 in Diameter	193, 248, 254, 308	Less than 0.2 per surface	More than 99.6	5
Beamsplitters and Mirrors	Fused Silica, CaF₂, LiF	Up to 200 in Diameter	193, 248, 254, 308	10 - 99.8	0.2 - 90	5
2. Laser Coatings for Visible and Near IR Region
Anti-Reflective	Fused Silica, CaF₂, LiF, Glass	Up to 200 in Diameter	352, 632, 694, 1063, 1318	Less than 0.1 per surface	More than 99.8	20
Beamsplitters and Mirrors	Fused Silica, CaF₂, LiF, Glass	Up to 200 in Diameter	352, 632, 694, 1063, 1318	10 - 99.8	0.2 - 90	5
3. Laser Coatings for Infra Red Region
Anti-Reflective	CaF₂, BaF₂, Ge, GaAs, ZnSe	Up to 200 in Diameter	2.7, 3.8, 5.3, 10.6 (m)	0.2 - 1.0 per surface	More than 98	5 - 10, pulsed mode, more than 1kW/cm², CW
Beamsplitters and mirrors	CaF₂, BaF₂, Ge, GaAs, ZnSe	Up to 200 in Diameter	2.7, 3.8, 5.3, 10.6 (m)	10 - 99.3	0.5 - 90	5 - 10, pulsed mode, more than 1kW/cm², CW
4. Anti-Reflective Coatings for Visinle Region
Anti-Reflective	Fused Silica, CaF₂, LiF, Glass	Up to 100 in Diameter	A. 420 - 680 B. 380 - 780	A. <0.5 B. <0.8 per surface	97-99
5. High Performance Anti-Reflective Coatings for IR Region
Anti-Reflective	ZnSe, ZnS, CdTe, Ge	Up to 150 in Diameter	A. 3 - 5 B. 8 - 13 (m)	0.5 - 1.0 AVG per Surface	97 - 98 AVG 1mm THK Substrate
6. Broad Band Anti-Reflective Coatings for IR Region
Anti-Reflective	ZnSe, ZnS, CdTe, Ge	Up to 150 in Diameter	3 - 13 (m)	Reflectance per Suface: ZnSe, ZnS, CdTe - 3%(3-5 mkm), 1.5%(8-13 mkm), 2%(3-13 mkm) Ge - 4%(3-5 mkm), 3%(8-13 mkm), 4%(3-13 mkm)
7. High Durablle Anti-Reflective Coatings for IR Region
Anti-Reflective	ZnSe, ZnS, Ge	Up to 300 in diameter	3 - 5 8 - 13 (m)	2.0 AVG (ZnSe, ZnS) 4.0 AVG (Ge)	(94.0 AVG (ZnSe, ZnS) 91.0 AVG (Ge) 1 mm THK substrate
8. Anti-Reflectibe Coatings for Visible and Near IR Regions Simultaneously
Anti-Reflective	ZnSe, ZnS	Up to 150 in Diameter	0.63 or 1.06 + 10.6 (m)	<3.0 for 0.63, 1.06 <1.0 for 10.6	More than 99.7
Spectral Beamsplitters	ZnSe, ZnS	Up to 150 in Diameter	0.63 or 1.06 + 10.6 (m)	10 - 95 for 0.63, 1.06 <3.0 for 10.6
9. Beamsplitters for IR Spectrometers
	NaCl, KCl, KBr, CsI	Up to 150 in Diameter	2.5 - 25 m	50 +/-15	50 +/-15
10. Interference Filters Narrow Band, Broad Band, Blocking for UV, Visible and IR Regions
11. Metal Coatings Neutral Beamsplitters and Mirrors with Al, Cr, Ti, Cu Layers

LiNbO₃ (Litium Niobate)

La₂Ga₅SiO₁₄ (LanGaSite)

YAG (Yttrium Aluminium Garnet)

ZnO (Zincite)

II-VI group crystals (CdS, CdSe, CdTe, ZnS, ZnSe, ZnTe)

For more information, to order or request a quote, please call us or send us an email.