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THz Antenna Mount
THz Receiver for 1560 nm
THz Antenna for 800 nm
Menlo Systems offers photoconductive antennas made for excitation wavelengths of 800 nm and 1560 nm. An optomechanical antenna mount for the TERA8-1, which features XY adjustment and is compatible with Thorlabs' cage systems, is also available.
To view lenses designed for the terahertz regime, see Menlo Systems' THz lenses.
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Detail of the wrapped dipole structure of the TERA8-1.
The TERA8-1 antenna is a single dipole structure based on low temperature (LT)-grown GaAs. The chip is mounted on a PCB, and the structure is robust without bonded wires. The antenna can be used both as an emitter and as a detector. The antenna is a ready-to-use unit that comes mounted and connected. Its performance has been tested and verified for use in a wide range of THz experiments.
To obtain the best performance of the TERA8-1 antenna, Menlo Systems offers the T8-H2 mount, which includes a focusing lens for the input beam and a collimating Si lens for the THz radiation. The T8-H2 mount features XY position adjustment of the Si lens relative to the TERA8-1 antenna, as well as XY adjustment of the TERA8-1 position using differential screws for precisely aligning the antenna to the focus of the input beam. The beam height is 85 mm.
Menlo Systems' flexible, fiber-coupled TERA15-TX-FC and TERA15-RX-FC antenna modules for 1560 nm lasers are the unique solution for flexible, robust, all-fiber terahertz time domain spectroscopy systems. The high-power antenna technology is based on InGaAs/InAlAs multilayered mesa structures for the emitter and the receiver. For maximum THz bandwidth, Menlo Systems offers separate units optimized to act as the emitter and the detector. The polarization-maintaining (PM) coupling fiber ensures reliable and stable operation, even under harsh environmental conditions.