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.

Please use "Add to Cart" to place the interesting products in the shopping cart. Check out with online payment or ask us for the prices/availability via the shopping cart. Filters below or the form at the bottom can be used to assist product search or make further inquiries.

Part No.	Description	Application	Material	Wavelength	Bandwidth	Size	Aperture	Thickness	Length	Angle	Doping	Orientation	Displacement	Retardation	Delay	Coating	End cut	Holder	Price	Availability	Add to Cart

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.

If you do not find the suitable products above, you may let us know your requirements or applications in the form below. Our sales or technical staff will get back to you as soon as possible.

Please provide your contact information for us to get back to you:

Name:
Title:
Organization:
Work Phone:
E-Mail Address:
Enter the code in the box below: