TeraFlash pro

Versatile platform for time-domain terahertz spectroscopy and imaging
The TeraFlash Pro is TOPTICA’s most advanced table-top time-domain terahertz spectroscopy platform, designed to deliver exceptional performance for both research and industrial applications. Built around a robust femtosecond fiber laser and state-of-the-art photoconductive antennas, it sets new benchmarks in dynamic range, bandwidth, and measurement speed. With a compact, user-friendly design, the system provides reliable operation while offering the flexibility needed for spectroscopy, imaging and materials analysis.
Thanks to its advanced laser architecture and optimized detection technology, the newly introduced high-power version of the TeraFlash Pro achieves a peak dynamic range of 120 dB and a bandwidth exceeding 6 THz. With a frequency resolution down to 300 MHz and options for simultaneous dual emitter-receiver operation, the TeraFlash pro is ready for wideband spectroscopy, non-destructive testing and advanced imaging experiments. The system further lends itself to optical-pump terahertz-probe studies, or for terahertz near-field measurements.
With its unique combination of dynamic range, broad bandwidth, and modular versatility, the TeraFlash Pro redefines what is possible in time-domain terahertz spectroscopy—empowering users to push the boundaries of science and technology.

Your Benefits

Exceptional dynamic range - up to 120 dB 
Reaching a high dynamic range in a short time enables faster, more reliable measurements in industrial and time-critical use cases. See subtle spectral fingerprints, where others see only noise. Thicker and strongly absorbing samples can still be measured. Short measurements improve stability and reproducibility, especially when the sample or the setup is exposed to environmental drifts.
Broadest bandwidth in spectroscopy and imaging - greater than 6 THz
A broad spectral bandwidth translates into seeing more spectral features, and achieving a finer image resolution. We don't just claim to have 6 THz bandwidth, but provide useable signals out to 6 THz. In thickness gauging, this enables measurements on ultrathin films, down to 5 µm. In imaging, spectral filtering enhances the resolution of the image.
High flexibility in the choice of the terahertz path length
Owing to a software-controlled delay stage, the TeraFlash pro works with any terahertz path length from 15-110 cm, obviating the need to change any optical fibers. Different experiments require different path lengths - from just a few cm in a lab assembly to more than one meter in complex experimental settings. The TeraFlash pro features a second, computer-controlled delay stage that compensates for changes in the terahertz path length. The same system thus works for many different experimental configurations, without the need to reconnect any optical fibers.

Applications

Terahertz imaging
Broadband spectroscopy
Paint and coating layers
Semicon inspection & metrology

Options

Complete imaging extension
The Complete Imaging Extension scans a sample through the focus of the terahertz beam. Users can quickly reconfigure the optics from a transmission setup to a reflection geometry and vice versa.
Flexible imaging extension
The Flexible Imaging Extension includes a compact reflection head that moves on an aluminum frame. This assembly can be positioned horizontally, vertically or at any oblique angle and is well suited to study heavy objects, paintings or murals.
Photoconductive switches
Pulsed terahertz generation with leading-edge technology: InGaAs antennas provide up to 400 µW power and a bandwidth of 6 THz. The emitter and detector modules, developed by Fraunhofer Heinrich-Hertz Institute (Berlin/Germany), are packaged with a Silicon lens and SM/PM fiber and can be flexibly positioned in transmission or reflection experiments.
Optomechanics
TOPTICA offers different sets of optomechanics, designed for the most common beam-path configurations. For transmission-mode experiments, three rail-based assemblies produce a collimated terahertz beam (2-mirror setups), or an additional focus (4-mirror setup). For applications that require a reflection geometry, a compact reflection head generates a focus at the location of the sample. The optomechanics are compatible with photoconductive antennas for both frequency-domain and time-domain applications.

Specifications

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Many thanks to TOPTICA for providing us with an amazing equipment that made our "research dreams come true"! Stay connected for many other research activities in the THz domain!

Dr. Walter Fuscaldo, Researcher Consiglio Nazionale delle Ricerche

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