The volume has been reduced to less than 1/1000 of the conventional method!
We have begun providing samples of the industry's smallest* terahertz wave emission and detection devices
The cost is also less than one-tenth of that of conventional methods, enabling low-cost, space-saving development of terahertz wave applications.

ROHM Co., Ltd. has begun offering samples of the industry's smallest* terahertz wave generator and detector devices, which use the semiconductor element Resonant Tunneling Diode (RTD). Terahertz waves are expected to be applied to non-destructive testing, imaging and sensing in the medical and healthcare fields, and in the future to ultra-high-speed communication technology.
By providing this device, we hope to contribute to the development of applications that utilize terahertz waves.

ROHM has now developed a 0.5mm x 0.5mm sized RTD element for terahertz wave generation and detection. It can generate and detect terahertz waves with a frequency of 320GHz (Typ.) and an output of 10µW to 20µW. ROHM will begin offering samples of this RTD element mounted in a PLCC package (4.0mm x 4.3mm) used for LEDs and other devices. It is compact, less than 1/1000th the volume of conventional oscillators, making it easy to build a development environment for terahertz wave applications even in limited space.
When the antenna surfaces of the oscillation device and detection device are placed facing each other at a distance of 10 mm, a detection performance of 40 dB (Typ.) in the dynamic range can be achieved. Both the oscillation device and the detection device consume only 10 mW (Typ.) of power when in operation, and since they can oscillate and detect terahertz waves at room temperature, there is no need for cooling the equipment, as was necessary with some conventional methods. The device is small, energy-saving, and unaffected by the operating environment, making it suitable for a variety of applications.

* According to ROHM research as of September 30, 2024

For details, please see here (ROHM website)

​Click here for an explanatory article on terahertz waves