Toptica Terahertz Systems

  • Toptica TeraFlash smart: Ultrafast Time-Domain Terahertz Platform – Fast measurements of complete terahertz waveforms with 1600 pulse traces / sec

    Toptica TeraFlash smart: Ultrafast Time-Domain Terahertz Platform – Fast measurements of complete terahertz waveforms with 1600 pulse traces / sec

    TOPTICA’s TeraFlash smart utilizes a proprietary scheme dubbed ECOPS ("electronically controlled optical sampling"). The system comprises two synchronized femtosecond lasers, eliminating the need for a mechanical delay. This results in extremely high measurement speeds: the TeraFlash smart acquires 1600 complete terahertz waveforms per second, enabling terahertz-based thickness gauging at unprecedented speed. The system thus lends itself to measurements on rapidly moving samples, e.g. conveyor belts, papermaking machines, or extrusion lines. Learn more about TOPTICA's advanced terahertz solutions.

  • Toptica's TeraFlash pro Versatile time-domain terahertz platform achieves new benchmark specifications

    Toptica's TeraFlash pro Versatile time-domain terahertz platform achieves new benchmark specifications

    Toptica's TeraFlash pro, a table-top time-domain terahertz platform, sets new standards in terms of dynamic range, bandwidth and measurement speed. By means of a highly to an advanced laser design and progress in photoconductive antennas, the system now achieves a peak dynamic range of 100 dB, and a bandwidth of more than 6 THz. Owing to a highly precise mechanical delay stage, the system acquires 60 traces/s @ 50 ps scan range, or 95 traces/s @ 20 ps. The new “Dual” version enables simultaneous operation of two emitters and/or two receivers.

  • Toptica Imaging Extension: Fast and Flexible Imaging Platform for Terahertz Pro

    Toptica Imaging Extension: Fast and Flexible Imaging Platform for Terahertz Pro

    An accessory to the Toptica TeraFlash pro, the Toptica Imaging Extension utilizes two precise linear stages to scan a sample through the focus of the terahertz beam. The translational movement is synchronized with the shaker of the TeraFlash pro, resulting in a high measurement speed of up to 16 pixel/sec. A “basic” setup is available for researchers who wish to use their own optical components, and a “complete” version includes parabolic mirrors for beam shaping and focusing.

  • Toptica Teraflash Pro: Versatile time-domain terahertz platform

    Toptica Teraflash Pro: Versatile time-domain terahertz platform

    The Toptica TeraFlash pro, a table-top time-domain terahertz platform, sets new standards in terms of dynamic range, bandwidth and measurement speed. Owing to an advanced laser design and progress in photoconductive antennas, the system now achieves a peak dynamic range of 95 dB, and a bandwidth of 6 THz, all within less than 20 s. The highly precise mechanical delay stage enables the acquisition of 60 traces/s @ 50 ps, or 95 traces/s @ 20 ps.

  • Toptica: Terahertz-Based Plastic Inspection

    Toptica: Terahertz-Based Plastic Inspection

    Many polymeric materials appear – more or less – transparent for terahertz radiation. Researchers and engineers have successfully exploited this behavior for contact-free analysis and non-destructive testing. For example, pulsed terahertz radiation can uncover the thickness of an object, using an "echolocation" technique: In reflection-mode measurements, terahertz pulses strike the object under test, and its front and back side each reflect a part of the incident pulse. The time-of-flight difference, i.e. the time elapsed between the arrivals of the pulse echoes from either side, is directly proportional to the optical thickness of the layer. The method still works if the object consists of several different layers, and TOPTICA's customers have resolved layers down to 10-20 µm, even in ternary and quaternary materials.

  • Toptica TeraScan Frequency-Domain Terahertz Platform

    Toptica TeraScan Frequency-Domain Terahertz Platform

    TOPTICA’sTeraScan platforms are well-established “TopSeller” configurations for frequency-domain terahertz spectroscopy. The systems combine mature DFB diode lasers with state-of-the-art GaAs or InGaAs photomixers. The TeraScan 780 offers an outstanding bandwidth, and the TeraScan 1550 sets new benchmarks in terms of terahertz power and dynamic range. Both systems feature TOPTICA's proprietary “DLC smart” control electronics.

  • Toptica TeraFlash: Time-domain terahertz spectroscopy

    Toptica TeraFlash: Time-domain terahertz spectroscopy

    TOPTICAintroduces the new TeraFlash system, a table-top platform for time-domain terahertz spectroscopy. The all-fibre design is based on mature 1.5 µm telecom technology, combining TOPTICA’s established femtosecond fibre lasers and state-of-the-art InGaAs antennas.

    Using a highly precise delay stage, the TeraFlash achieves a peak dynamic range of more than 70 dB. Users can choose between a “precisescan” mode and a “fast scan” mode. In “precise scan” mode a bandwidth of 4 THz and a resolution better than 10 GHz are attained. Alternatively, in “fast scan” mode, a pulse trace is acquired in only 50 ms. The fibre-coupled antenna modules can be conveniently arranged, depending on the needs of the experiment. Integrated in the system is TOPTICA’s FemtoFErb 1560, the most compact ultrafast laser on the market. The SAM mode-locked fibre oscillator and the usage of polarization-maintaining fibres ensure a high robustness and alignment-free, “hands-off” operation. The TeraFlash system is a perfect solution for applications such as high-bandwidth spectroscopy (e.g. of explosives or liquid crystals) and industrial process control.

Lasers, Light & other EM Sources