Pure YVO4 Crystals

Pure Yttrium Vanadate (YVO₄) crystal is a positive uniaxial crystal with a wide transparency range in infrared, a large birefringence, and excellent mechanical properties. It has been extensively used in fabricating birefringent plates, polarizers, isolators, circulators, and beam displacers.

On this page are birefringent YVO₄ plates or blocks. For polarizing optics manufactured from YVO₄ crystal, please go to Polarizing Optics.

YVO₄ crystal wedges/prisms are also available. Please check the "Tech Info" tab below for more information.

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Model	Name	holder	thickness	orientation	Price	Availability	Action
YVO5010-A	YVO4 crystal, size 5x5x0.1mm, a-cut, uncoated, OD 1" mounted	OD 1"	0.1mm	a-cut	Ask	Out Of Stock
YVO5010-45	YVO4 crystal, size 5x5x0.1mm, 45 deg-cut, uncoated, OD 1" mounted	OD 1"	0.1mm	45 deg	Ask	Out Of Stock
YVO5050-A	YVO4 crystal, size 5x5x0.5mm, a-cut, uncoated, OD 1" mounted	OD 1"	0.5mm	a-cut	Ask	Out Of Stock
YVO5050-45	YVO4 crystal, size 5x5x0.5mm, 45 deg-cut, uncoated, OD 1" mounted	OD 1"	0.5mm	45 deg	Ask	Out Of Stock
YVO10010-A	YVO4 crystal, size 10x10x0.1mm, a-cut, uncoated, OD 1" mounted	OD 1"	0.1mm	a-cut	USD$599.00
YVO10010-45	YVO4 crystal, size 10x10x0.1mm, 45 deg-cut, uncoated, OD 1" mounted	OD 1"	0.1mm	45 deg	Ask	Out Of Stock
YVO10020-A	YVO4 crystal, size 10x10x0.2mm, a-cut, uncoated, OD 1" mounted	OD 1"	0.2mm	a-cut	USD$599.00
YVO10020-45	YVO4 crystal, size 10x10x0.2mm, 45 deg-cut, uncoated, OD 1" mounted	OD 1"	0.2mm	45 deg	Ask	Out Of Stock
YVO10050-A	YVO4 crystal, size 10x10x0.5mm, a-cut, uncoated, OD 1" mounted	OD 1"	0.5mm	a-cut	USD$529.00	Out Of Stock
YVO10050-45	YVO4 crystal, size 10x10x0.5mm, 45 deg-cut, uncoated, OD 1" mounted	OD 1"	0.5mm	45 deg	Ask	Out Of Stock
YVO10100-A	YVO4 crystal, size 10x10x1.0mm, a-cut, uncoated, OD 1" mounted	OD 1"	1.0mm	a-cut	USD$499.00	Out Of Stock
YVO10100-45	YVO4 crystal, size 10x10x1.0mm, 45 deg-cut, uncoated, OD 1" mounted	OD 1"	1.0mm	45 deg	Ask	Out Of Stock
YVO12500-A	YVO4 crystal, size 12.7x12.7x5.0mm, A-cut, uncoated	Unmounted	5.0mm	a-cut	Ask	Out Of Stock
YVO10200-A	YVO4 crystal, size 10x10x2.0mm, a-cut, uncoated, OD 1" mounted	OD 1"	2.0mm	a-cut	Ask	Out Of Stock
YVO10200-45	YVO4 crystal, size 10x10x2.0mm, 45 deg-cut, uncoated, OD 1" mounted	OD 1"	2.0mm	45 deg	Ask	Out Of Stock

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Basic Properties of YVO₄ Crystals:

Transparency Range: 400 - 4000 nm			Transmission Curve (uncoated)
Crystal Symmetry: Zircon Tetragonal, D4h (4/mmm)
Lattice Constants: a=b=7.12Å; c=6.29 Å
Density: 4.22 g/cm³
Thermo-Optic Coefficients: dn_o/dT= 8.5 x 10^-6 /^oC dn_e/dT= 3.0 x 10^-6/^oC
Damage Threshold (10 ns, 10 Hz) at 1064 nm 100 MW/cm² at 532 nm 50 MW/cm²
Optical Homogeneity: Δn < 10^-6/cm
Mohs Hardness: 5
Thermal Expansion Coefficients			α_a = 4.4 x 10^-6/K α_c = 11.4 x 10^-6/K
Linear Absorption Coefficient: α<0.01 cm^-1 from 400 to 5000 nm
Sellmeier Equation (λ in µm): n_o²=3.77834 + 0.069736/(λ² - 0.04724) - 0.0108133λ² n_e²=4.59905 + 0.110534/(λ² - 0.04813) - 0.0122676λ²
Wavelength (nm)	n_o	n_e	Birefringence (Δn=n_e-n_o)	Walk-off Angle at 45°
1550	1.9447	2.1486	0.204	-5.67°
1300	1.9500	2.1554	0.205	-5.70°
1064	1.9571	2.1650	0.208	-5.74°
800	1.9721	2.1859	0.214	-5.86°
632.8	1.9929	2.2154	0.223	-6.02°
532	2.0177	2.2508	0.233	-6.22°

Specifications of Pure YVO4 Components:

Dimension Tolerance:	±0.1 mm
Wedge Angle Tolerance:	0.1°
Surface Quality:	20/10 Scratch and Dig
Optical Axis Orientation:	+/-0.5°
Parallelism:	< 30 arc sec
Perpendicularity:	< 10 arc min
Flatness:	λ/6 @ 632.8 nm
Transmission Wavefront Distortion:	< λ/4 @ 632.8 nm for T < 25mm
AR-coating:	R < 0.25%, available upon request

Common cut orientations:

Prisms:

YVO4 crystals with a wedge angle (α) can be custom fabricated with the specified orientation of the optical axis. A paired or such prisms with the optical axes orthogonal to each other can be used to continuously adjust the phase shift or time delay between two orthogonally polarized pulses.

Coatings:

YVO4 crystals are uncoated unless the coating is specified. Anti-reflection coatings (AR coatings) with R < 0.25% at the specified wavelengths are available upon request.

Mount:

For customer convenience and protection of crystals, crystals can be pre-mounted in a 1" (25.4 mm) anodized aluminum holder. A standard 1" mirror mount may be conveniently used to tune the crystals for optimized birefringence or time delay. A rotation stage may be further used if a larger angular change is needed.

0.5" (12.7 mm) holders for smaller crystals are available upon request.