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Other Thermal Equipment

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  • Terahertz emitter

EMT, DET series

Article: 00103451

Terahertz emitter

Includes all necessary components for assembling of optical system for Time Domain THz Spectroscopy. Usable spectral range extends from 0.1 to 4 THz.

Features
Based on LT-GaAs or GaBiAs photoconductive material
Optimized for wavelengths around 800 nm or 1060 nm
Wide spectral range and low noise
Sub-picosecond temporal resolution
Technical passport and test report included

Applications
Time-resolved broadband THz spectroscopy
Optical pump ? THz probe spectroscopy
THz imaging
THz emitter and THz detector consists of a microstrip photoconductive antenna (PCA) fabricated on GaAs substrate. Depending on pump laser wavelength either low temperature grown GaAs (LT-GaAs) or GaBiAs is used as photoconductor. On its surface a coplanar Hertzian type dipole antenna structure is formed using AuGeNi metallization. Photoconductive antenna geometry, as well as the properties of photoconductor epitaxial layers are optimized for highest THz radiation output efficiency, while preserving optimal bandwidth. As a result, typical emitted THz radiation power exceeds 10 ?W, when pumped by laser with 30 mW output power and 150 fs pulse duration. FWHM bandwidth of detection system exceeds 700 GHz with usable spectral range of 0.1?4 THz.

Specifications

  • Type: terahertz

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