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Photonic Crystal Library

A comprehensive guide to help you explore the perfect photonic crystal solution for your project or application.

Overview of Photonic crystals

Photonic crystals power today’s technologies—from optical communication to medical imaging and laser systems. These engineered materials use periodic structures to control light, enabling precise manipulation for advanced applications.

This library offers a comprehensive, easy-to-navigate guide to photonic crystals, featuring detailed properties, uses, and performance data. Whether you’re developing a laser system, optical sensor, or next-gen photonic device, explore a curated catalog crystals to find the right material for your project.

The table below shows the comparison of the common crystal categories:

Crystal
Transparency Range (If Applicable)
Key Features
Applications

Nonlinear Crystals

0.2 – 18 µm (varies by material)
Enable frequency conversion, harmonic generation, and parametric amplification.
Nonlinear optics, telecommunications, medical lasers

Laser Crystals

0.2 – 2.1 µm
Provide optical gain, excellent thermal properties, and high damage thresholds.
Industrial, medical, scientific laser systems

Magneto-Optical Crystals

0.4 – 2.0 µm
Facilitate polarization control with high Faraday rotation and low absorption.
Laser isolators, circulators, optical communication

Raman Crystals

0.2 – 1.0 µm
Support Raman scattering processes for wavelength conversion and spectroscopy.
Raman lasers, wavelength conversion, analytical spectroscopy

Infrared Crystals

2.5 – 25 µm
Cover mid-IR to far-IR transparency for thermal imaging and laser systems.
Thermal imaging, spectroscopy, laser guidance systems

Athermal Crystals

Variable, designed for thermal stability
Maintain optical stability across wide temperature ranges.
Aerospace, defense, high-precision optical systems

Q-Switching Crystals

Visible to NIR range
Efficiently modulate laser pulses in high-power applications.
High-power laser cutting, marking, medical lasers

Scintillation Crystals

0.3 – 2.5 µm
Convert radiation to visible light with high energy efficiency.
Radiation detection in medical imaging, security

Terahertz Crystals

0.1 – 10 THz
THz radiation for spectroscopy, imaging, and communication.
THz spectroscopy, imaging systems, wireless communications

Birefringent Crystals

0.3 – 2.1 µm
High birefringence for polarization optics, waveplates, and polarizers.
Polarization optics, beam splitters, interferometry

Optical Crystals

Optical crystals are advanced materials engineered to manipulate, amplify, and transmit light with exceptional efficiency and minimal loss. They form the foundation of modern photonic technologies, driving innovations across telecommunications, healthcare, and scientific research.
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Nonlinear Crystals

Nonlinear crystals are key photonic materials with unique optical properties that enable wavelength conversion processes such as SHG, OPO, and SFG—broadening laser applications across industries. Common types include Beta Barium Borate (BBO), valued for its wide transparency range (190–3500 nm) and high damage threshold, and Lithium Triborate (LBO), prized for its excellent thermal stability in high-power lasers. These crystals are vital in laser spectroscopy, precision machining, and advanced medical imaging.
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Laser Crystals

Laser crystals serve as the gain medium in solid-state lasers, doped with rare-earth ions such as Nd, Yb, or Er to enable light amplification. Common examples include Nd:YAG, known for its efficiency and 1064 nm emission in industrial and medical lasers, and Yb:YAG, ideal for high-energy, high-repetition-rate systems due to its low thermal load. These crystals are essential in material processing, laser cutting, and precision medical applications.
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Magneto-Optical Crystals

Magneto-optical crystals exploit the Faraday effect, rotating light polarization under a magnetic field. They are vital in isolators, circulators, and modulators for optical communication and laser systems. Terbium Gallium Garnet (TGG), known for its high Verdet constant, strong thermal conductivity, and low optical loss, is ideal for high-power laser isolators and precision optical instruments.
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Raman Crystals

Raman crystals harness the Raman scattering effect for wavelength shifting and laser frequency stabilization. Barium Tungstate (BaWO₄), known for its high Raman gain and superior optical quality, is a common choice. These crystals are widely used in spectroscopy, laser medicine, and quantum optics.
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Infrared Crystals

Infrared (IR) crystals operate in the 1–20 μm range, supporting applications in thermal imaging, IR spectroscopy, and laser systems. Zinc Selenide (ZnSe) offers broad transparency and low absorption for CO₂ lasers, while Germanium (Ge) provides high refractive index and excellent 2–12 μm transmission for thermal and night-vision optics.
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Athermal Crystals

Athermal crystals maintain stable optical performance across temperature changes, making them essential for precision systems. Calcium Fluoride (CaF₂), with its low thermal expansion and high clarity, is widely used in telescopes, lasers, and spectrometers.
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Q-Switching Crystals

Q-switching crystals generate short, high-intensity laser pulses by controlling energy buildup within the laser cavity. Cr:YAG, known for its high damage threshold and stability, is commonly used in medical lasers, micromachining, and rangefinding applications.
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Scintillation Crystals

Scintillation crystals emit light when exposed to high-energy particles, enabling radiation detection and imaging. Cesium Iodide (CsI) offers high light yield and fast response for X-ray and gamma detection, while Bismuth Germanate (BGO) provides high density and energy resolution for PET and other advanced imaging systems.
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CVD (Chemical Vapor Deposition) diamonds

CVD diamonds are synthetic crystals with exceptional optical, thermal, and mechanical properties, essential for high-tech applications. Produced via controlled deposition, they offer high purity, broad UV–IR transparency, and superior hardness. Optical-grade polycrystalline and single-crystal diamonds are used in high-power lasers, IR windows, and Raman spectroscopy, while Raman and color-center diamonds (with NV centers) advance spectroscopy, quantum computing, and photonic technologies.
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Terahertz Crystals

Terahertz crystals operate in the 0.1–10 THz range for imaging, spectroscopy, and communication. Gallium Phosphide (GaP) excels in terahertz generation and detection with strong nonlinear properties, while Lithium Niobate (LiNbO₃) is favored for waveguides and modulators due to its high electro-optic efficiency.
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Birefringent Crystals

Birefringent crystals are optical materials that exhibit double refraction, meaning they split an incident light beam into two separate rays—known as the ordinary (o-ray) and extraordinary (e-ray)—which propagate at different velocities and refractive indices within the crystal. This phenomenon arises due to the anisotropic nature of the crystal lattice, where the refractive index varies depending on the direction of light propagation and polarization.
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