<human>: Question: What type of diode was used to help discover near-infrared light emission?

Is "In September 1961, while working at Texas Instruments in Dallas, Texas, James R. Biard and Gary Pittman discovered near-infrared (900 nm) light emission from a tunnel diode they had constructed on a GaAs substrate." the correct answer?

OPTIONS:
- yes
- no
<bot>: yes