CY0499 AgGaS2 & AgGaSe2 Crystal

AgGaS2 & AgGaSe2 Crystal Description

Silver gallium sulphide (AgGaS2) and silver gallium selenide (AgGaSe2) crystals have recently attracted research interest due to their high non‐linear optical (NLO) coefficients and high transmission in the infrared range, rendering them suitable for mid‐ and far‐infrared (IR) applications.

The phase matching and transmission properties of AgGaS2 enable three‐wave interactions in the mid and near‐IR. AgGaS2 has been employed as a non‐linear optical crystal for 3–10 µm IR output in systems such as OPO devices pumped by Nd:YAG lasers, frequency mixing of OPO outputs pumped by Ti:Sapphire or Nd:YAG lasers, and frequency mixing of Nd:YAG lasers with dye lasers, Ti:Sapphire or other laser sources. AgGaS2 has also been used as a frequency doubling crystal for infrared radiation, for example for the 10.6 µm output of CO2 lasers.

Specifications for AgGaS2 and AgGaSe2 Crystals

Features of AgGaS2 & AgGaSe2 Crystals

• Strict quality control
• Rapid delivery
• Competitive pricing and significant OEM discount
• Coating, assembly and post-polishing services
• Free technical support

Applications of AgGaS2 & AgGaSe2 Crystals

1. Optical Parametric Oscillators (OPOs) and Amplifiers (OPAs):

AgGaS2 and AgGaSe2 crystals are frequently used in optical parametric oscillators and amplifiers.

2. Frequency Conversion:

AgGaS2 and AgGaSe2 crystals are capable of converting infrared (IR) laser light into visible and ultraviolet (UV) wavelengths, thereby supporting laser-based material processing, medical applications and scientific experiments.

3. Second-Harmonic Generation (SHG):

These crystals are utilised for second-harmonic generation to produce coherent light at half the original wavelength.

SHG is applied in laser sources for fluorescence microscopy, laser displays and various imaging methods.

4. Terahertz Generation:

AgGaS2 and AgGaSe2 crystals may be used to generate terahertz (THz) radiation via difference frequency generation. Terahertz radiation is applied in imaging, spectroscopy and security inspection.

5. Laser Systems:

These crystals are integrated in laser systems for various applications, including telecommunication, environmental monitoring and military systems.

They may be incorporated in solid-state lasers, tuneable laser sources and mode-locked lasers.

6. Nonlinear Optical Studies:

Researchers utilise AgGaS2 and AgGaSe2 crystals for nonlinear optical studies and experiments to investigate fundamental optical phenomena and quantum optics.

7. Biomedical Imaging:

In biomedical imaging, particularly in multiphoton microscopy, these crystals assist in generating laser light for deep tissue imaging with high spatial resolution and minimal photodamage.

8. Remote Sensing:

These crystals are utilised in remote sensing, for example in LIDAR (Light Detection and Ranging), atmospheric studies, environmental monitoring and geological investigations.

9. Defence and Security:

AgGaS2 and AgGaSe2 crystals are applied in defence and security systems, including laser rangefinders, target designators and countermeasure systems.