DTGS/DlaTGS – High-Stability Pyroelectric Crystal for Infrared Detection
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China
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On FindLight:
since 2022
Description
The Crystrong DLaTGS (Deuterated L-Alanine-doped Triglycine Sulfate) crystal is a highly stable pyroelectric material widely used in infrared detection and sensing applications. With a broad spectral response from 0.4 μm (750 THz) in the near-ultraviolet to 200 μm (1.5 THz) in the far-infrared, it offers unmatched versatility for aerospace, defense, medical, and fire safety technologies.
Derived from TGS (Triglycine Sulfate), DLaTGS retains its superior pyroelectric coefficient and low dielectric constant while improving thermal stability through deuteration and L-alanine incorporation. This unique modification increases the Curie temperature to 56–58°C, enhancing device performance under elevated operating conditions. Unlike standard TGS, DLaTGS crystals can lock polarization, ensuring inherent pyroelectric properties without additional polarization procedures.
The material demonstrates excellent stability—after heating above the Curie temperature and cooling, its pyroelectric performance is fully recoverable. Its wide spectral sensitivity, high figure of merit, and stable pyroelectric behavior make it particularly suitable for uncooled infrared detectors, thermal imaging systems, spectroscopy, and other precision sensing applications.
Crystrong’s DLaTGS crystals are engineered to deliver long-term reliability, making them an ideal choice for high-performance pyroelectric devices.
DTGS/DlaTGS – High-Stability Pyroelectric Crystal for Infrared Detection
Features
- Wide Spectral Range: Sensitive from 0.4 μm (NUV) to 200 μm (FIR).
- High Pyroelectric Coefficient: Ensures excellent infrared detection sensitivity.
- Enhanced Thermal Stability: Curie temperature of 56–58°C for higher operating reliability.
- Polarization Locking: Intrinsic pyroelectric behavior without external polarization.
- Excellent Stability: Pyroelectric properties recover after thermal cycling.
- Low Dielectric Constant: Provides an optimal figure of merit for pyroelectric sensors.
Applications
- Infrared Detectors: Uncooled IR sensors for aerospace and defense.
- Thermal Imaging Systems: High-sensitivity imaging in industrial and medical fields.
- Spectroscopy: Ideal for mid-IR and far-IR spectroscopic instruments.
- Fire and Safety Systems: Reliable detection for hazard monitoring and prevention.
Frequently Asked Questions
DLATGS crystal is a crystalline material with a pyroelectric effect that can provide a wide range of infrared radiation.
DLATGS crystal can detect radiation in the wavelength range from ultraviolet to far-infrared.
No, DLATGS crystal does not require cryogen cooling.
The Curie temperature of DLATGS crystal is about 47°C, but it can be increased to more than 60°C by deuteration.
Yes, DLATGS crystal has high stability and is suitable for making pyroelectric devices with stable performance in high working temperature.