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New Cesium Lithium Borate Crystal | CLBO Crystal-Heeger Materials Inc View larger

Cesium Lithium Borate Crystal | CLBO Crystal

HM2823

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Cesium Lithium Borate (CLBO) Crystal is a promising nonlinear optical material with excellent deep ultraviolet (UV) properties. It is widely used in high-power lasers, optical communication, imaging, biomedical applications, and UV radar, offering high conversion efficiency and wide spectral range.

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Data sheet

MaterialsCLBO
Melting Piont844.5 ℃
Molecular FormulaCsLiB6O10

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Cesium Lithium Borate (CLBO) Crystal is an emerging nonlinear optical material known for its excellent deep UV properties. It is ideal for high-power lasers, optical communication, imaging, and biomedical applications. CLBO offers a broad spectral range, high-temperature tolerance, and high conversion efficiency, making it an outstanding harmonic generator, especially for fourth and fifth harmonics of Nd: YAG lasers with SHG wavelengths down to 237 nm. CLBO excels in UV applications with superior thermal properties and efficiency compared to LBO and BBO. Heeger Materials (HM) provides high-quality CLBO crystals for advanced applications.

Cesium Lithium Borate Crystal | CLBO Crystal

CLBO Crystal Specifications

Dimension Tolerance

(W±0.1 mm) × (H±0.1 mm) × (L+0.5/-0.1 mm) (L≥2.5 mm)

(W±0.1 mm) × (H±0.1 mm) × (L+0.1/-0.1 mm) (L＜2.5 mm)

Effective Clear Aperture

Center 90% Area

Surface Quality

10/5 per MIL-PRF-13830B standard

Flatness

＜λ/6 @ 633 nm

Parallelism

20″

Perpendicularity

≦15′

Angle Tolerance

Δθ≦0.25°, ΔФ≦0.25°

Chamfer

≦0.2 mm×45°

Edge Chipping

≦0.1 mm

Damage Threshold

＞0.3 GW/cm² @ 532 nm, 10 ns, 10 Hz (AR Coating)

＞0.15 GW/cm² @ 266 nm, 10 ns, 10 Hz (AR Coating)

CLBO Crystal Chemical and Structural Properties

Crystal Structure

Tetragonal, space group I

Unit Cell Parameters

a=b=10.494 Å, c=8.939 Å

Symmetry

Z=4

Melting Point

~844.5 °C

CLBO Crystal Optical and Nonlinear Optical Properties

Transparency Range

180-2750 nm

Acceptance Angle

1.02 mrad·cm @ 1064 nm, 0.49 mrad·cm @ 532 nm, 0.84 mrad·cm @ 488 nm

Temperature Bandwidth

9.4 °C·cm

Spectral Acceptance Bandwidth

7.03 nm·cm @ 1064 nm, 0.13 nm·cm @ 532 nm, 0.09 nm·cm @ 488 nm

Walk-off Angle

1.78° @ 1064 nm, 1.83° @ 532 nm, 0.98° @ 488 nm

Effective Nonlinear Coefficient

1.01 pm/V @ 532 nm, 1.16 pm/V @ 488 nm, 0.95 pm/V @ 1064 nm

Nonlinear Optical Coefficients

deff (I)=d₃₆sinθmsin(2Ф)

deff (II)=d₃₆sin(2θm)sin(2Ф)

Sellmeier Equations

no² = 2.2104 + 0.01018 / (λ² - 0.01424) - 0.01258 λ² (λ in μm, at 20 °C)

ne² = 2.0588 + 0.00838 / (λ² - 0.01363) - 0.00607 λ² (λ in μm, at 20 °C)

(0.1914 µm < λ < 2.09 µm)

CLBO Crystal Transmittance Curve

CLBO Crystal Transmittance Curve

CLBO Crystal SHG Tuning Curve

CLBO Crystal SHG Tuning Curve

CLBO Crystal Key Advantages

  • Short wavelength cutoff as low as 180 nm.
  • High conversion efficiency for the fourth and fifth harmonic generation of Nd: YAG lasers.
  • High nonlinear coefficient (about twice that of KDP).
  • Large acceptance angle and small walk-off angle.
  • 193 nm vacuum ultraviolet output can be achieved through phase matching.
  • Short growth cycle, capable of growing large-sized crystals.

CLBO Crystal Coating

  • Suitable for dual-band or tri-band anti-reflective coatings in the fourth and fifth harmonic processes at 1064 nm
  • High damage threshold
  • Long service life
  • Custom coating services are available

CLBO Crystal Applications

  • Frequency Doubling: Generation of 266 nm laser through frequency doubling.
  • Microprocessing: Used in various microprocessing applications.
  • Semiconductor Photolithography and Inspection: Applied in semiconductor photolithography and inspection processes.
  • Biomedical Applications: Utilized in various biomedical applications, including diagnostics and imaging.
  • UV-LIDAR: Key in UV-LIDAR systems for high-precision measurement.
  • Harmonic Generation: Phase matching for second, third, fourth, and fifth harmonic generation of Nd: YAG lasers.
  • Alexandrite and Ti: sapphire Laser Frequency Doubling and Tripling: Used in second and third harmonic generation for Alexandrite and Ti: sapphire lasers.

CLBO Crystal Packing And Shipping

Cesium Lithium Borate (CLBO) Crystal will be securely packaged in sturdy containers with cushioning materials to prevent movement or damage during shipping. This careful packaging ensures that the product arrives in perfect condition, maintaining its high-quality standards throughout the delivery process.

Cesium Lithium Borate Crystal | CLBO Crystal Packing

Where to Buy Cesium Lithium Borate (CLBO) Crystal in Bulk?

Heeger Materials Inc., a professional supplier and manufacturer of high-quality Nonlinear Crystals products including Cesium Lithium Borate (CLBO) Crystal, leverages extensive expertise in supply and export to offer competitive prices. We provide customized solutions to meet specific requirements, ensuring exceptional quality and customer satisfaction.

Heeger Materials Inc. was established in 2016 in Colorado, USA. We specialize in premium-grade metals, alloys, ceramics, powders, and other materials catering to research, development, and large-scale industrial production in scientific and industrial sectors. 

Nonlinear Crystal Stock Models

Nonlinear Crystal Type

BBO, ß-BaB₂O₄

KTP, KTiOPO₃

LBO, LiB₃O₅

BIBO, BiB₃O₆

CLBO, CsLiB₆O₁₀

Transmission Range (nm)

190-3500

350-4500

160-2600

286-2500

180-2750

SHG Phase-Matching Range (nm)

409.6-3500 (Type I)

25-3500

(Type II)

994-2000 (Type II)

551-2600 (Type I)

790-2150 (Type II)

574-2480

473-2750 (Type I) 636-2750 (Type II)

Effective Nonlinear Coefficient deff SHG 1064 nm [pm/V]

2.14 (Type I)

1.47 (Type II)

4.03 (Type II)

0.82 (Type I)

3.34

0.9 (Type I, 4HG)  1.19 (Type I, 5HG) 0.95 (Type II)

Absorption Coefficient [%/cm]

<0.1@1064nm <1@532nm

<0.1@1064nm <1@532nm

<0.1@1064nm <0.3@532nm

<0.1@1064nm

<0.03@1064nm <0.1@532nm

Acceptance Angle SHG 1064 nm [mrad/cm]

0.8 (Type I)  1.27 (Type II)

14.2 (φ)

55.3 (θ)

6.54 (Type I)  15.27 (Type II)

1.03 (ee-o)

 0.45 (Type I, 4HG)

0.42 (Type I, 5HG)

1.90 (Type II)

Walk-off Angle SHG 1064 nm [mrad]

55.6 (Type I)  69.4 (Type II)

4.87 (Type II)

6.7 (Type I)

6.4 (Type II)

24.5 (Type I)

7.85 (Type I, 4HG)

7.33 (Type I, 5HG)

33.1 (Type II)

Acceptance Temperature SHG 1064 nm [°C/cm]

70

24

6.7 (Type I) 7.5 (Type II)

2.17

8.30 (Type I, 4HG)

4.60 (Type I, 5HG)

43.1 (Type II)

Acceptance Spectrum

1.1

0.56

1.0 (Type I)

1.3 (Type II)

0.96 (ee-o)

 0.13 (Type I, 4HG)

0.16 (Type I, 5HG)

5.60 (Type II)

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