Japanese researchers at the Tokyo Institute of Technology smash the record for wireless data transmission over the "T-ray" band, achieving 3Gbps transfer over a 542GHz wireless connection.
The data rate achieved is double the previous record from chip maker Rohm of 1.5Gbps transfers using a 300GHz connection. Such connections falls into the 300GHz-3THz band, known as the terahertz spectrum or simply "T-rays."
300GHz is 60x higher than the highest current wifi standard.
Tetraherz wifi has range limitations (around 10m) but supports data rates of up to 100Gb/s, nearly x15 higher than the next generation of 802.11ac wifi.
The Japanese researchers achieve such wifi speeds using a resonant tunneling diode (RTD), a 1mm-square device that "resonates" and transmits electro-magnetic signals at very high frequencies. Previous T-ray experiments required bulky, costly and power-hungry equipment with science fiction-esque names like "quantum cascade lasers."
Project leader Dr. Safumi Suzuki is confident tetraherz communications are ripe for consumerisation-- he believes "everybody will use products related to THz technology within the next decade."