גביש סילניט | Sillenite crystals BGO | BSO | BTO

גבישי סילניט הם פוטורפרקטיביים. תכונה זו של הגבישים מאפשרת ליצור התפלגות מרחבית של אינדקס השבירה בגבישים וניתן להשתמש בהם במגוון רחב של מכשירים בתחום ההולוגרפיה, זיכרון אופטי, מודולטורים לאור מרחבי ועוד. בגבישי הסילניט יש שילוב של תכונות פוטורפרקטיביות ותכונות אלקטרואופטיות אחרות ולכן הם מעולים כחומרי גלם לאופטו-אלקטרוניקה

מאפייני החומרים – Material properties:

	BSO	BGO	BTO
סימטריית הגביש	Cubic, 23	Cubic, 23	Cubic, 23
Lattice parameter, A	10,104	10,145	10,176
צפיפות , g/cm³	9,14	9,23	9,10
Mohs hardness	5	4,5	5
נקודת המסה , °C	900	925	840
טווח שקיפות , nm	0,45-6	0,45-7	0,5-6
אינדקס רפרקטיבי	2,54	2,55	2,56

אתם מוזמנים ליצור עמנו קשר לקבלת ייעוץ, פרטים נוספים והצעת מחיר

התקשרו עוד היום

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גביש סילניט, גבישי סילניט, גבישים מסילניט, סילניט, חומר גלם סילניט, סילניט קריסטל, גביש פוטורפרקטיבי, גבישים פוטורפרקטיביים, הולוגרפיה, זיכרון אופטי, Sillenite crystals BGO | BSO | BTO, BGO, BSO, BTO, sillenite, sillenite crystal, crystals from sillenite, Photorefraction, refractive index variation in the material exposed to light, spatial distribution of refractive index, spatial light modulators, optical memory, holography, phase conjugation, Sillenite structure Bi₁₂MO₂₀, Bi₁₂MO₂₀, optoelectronics

Products in high demand today that are similar to these crystals are often used for high-end optical, laser, and radiation detection applications, where enhanced performance is a must.

1. Scintillation Crystals

Many crystals have replaced or are used alongside bismuth germanate (BGO) for radiation detection. Lutetium Oxyorthosilicate (LSO) and Lutetium-Yttrium Oxyorthosilicate (LYSO) are in very high demand for medical imaging (PET scanners) and security, as they offer much higher light output and faster decay times than BGO. Cerium-doped Gadolinium Aluminum Gallium Garnet (Ce:GAGG) is another popular scintillator, known for its high light yield, excellent energy resolution, and non-hygroscopic nature.

2. Photorefractive Crystals

Beyond the Sillenites, other crystals are in demand for their ability to change their refractive index in response to light, a property used for real-time holography, optical data storage, and phase conjugation. Lithium Niobate (LiNbO3) is a leading material in this category, valued for its high electro-optic and nonlinear optical coefficients, making it a staple for modulators and switches in optical communication. Another alternative is Strontium Barium Niobate (SBN), which is particularly notable for its large photorefractive effect.

3. Nonlinear Optical Crystals

These are crystals that can convert light from one wavelength to another, a process essential for generating harmonics (e.g., green light from an infrared laser). While Sillenites have some nonlinear properties, modern systems often use more efficient materials like Beta Barium Borate (BBO) and Lithium Triborate (LBO). These are in high demand for frequency doubling and tripling high-power lasers.

4. Pockels Cells

A Pockels cell is an electro-optic modulator that uses a crystal to rotate the polarization of light when a voltage is applied. Sillenites can be used for this, but more advanced materials are in demand for high-speed applications. Lithium Niobate is a key material, but Barium Titanate (BaTiO3) is emerging as a top alternative due to its exceptionally high Pockels coefficient, making it a promising material for integrated photonics.

5. Laser Host Crystals

These are the core of a solid-state laser, a crystalline material doped with an active ion that produces light. Neodymium-doped Yttrium Aluminum Garnet (Nd:YAG) is the classic example and remains in high demand for its high power, while Ytterbium-doped Yttrium Aluminum Garnet (Yb:YAG) is increasingly popular for its superior efficiency.

6. Fiber-Optic Crystals

These are optical fibers with a crystalline core, offering the benefits of both fiber-optic and crystalline properties. They are used in high-power fiber lasers and amplifiers, allowing for a compact and robust design. While not a single crystal, the crystalline core itself is a specialized, in-demand material.

7. Waveplates

Waveplates are optics that manipulate the polarization of light. While not a crystal in the same vein as Sillenites, they are a fundamental crystalline product for beam control. The most in-demand type is the Zero-Order Waveplate, often made from crystal quartz, which offers superior performance to traditional multi-order designs.

8. Bragg Gratings

Fiber Bragg Gratings (FBG) are periodic changes in the refractive index of an optical fiber’s core that serve as a wavelength-selective filter. They’re not crystals, but they are a crucial component for wavelength management in telecommunications and sensing.

9. Photoelastic Modulators (PEMs)

These devices use a crystal that vibrates at a high frequency, inducing birefringence in the material, which modulates the polarization of light passing through it. They are in high demand for spectroscopy and polarimetry due to their high modulation frequency.

10. Magneto-Optic Crystals

These are crystals that change their refractive properties in the presence of a magnetic field. They are used in optical isolators and circulators, which are essential for protecting laser systems from back-reflections and for controlling the direction of light.