Dr. Fang Ko-Cheng, President of Longseerving Technology, announced 2-nanometer photonic wafer material technology.

Figure 1 shows a photonic chip whose ceramic substrate, after being coated with photonic material, appears transparent. This is because the average size of the photonic circuit material is about 2 nm, making it invisible to the naked eye in the visible light spectrum.

Figure 2 shows that when observed under a conventional electron microscope, the 2-nanometer photonic circuit material cannot be observed, so the resulting image is entirely black.

Figure 3 shows the development under red laser light. Assuming the visible light perceptible to the human eye is in the wavelength range of approximately 380 nm to 780 nm, the photonic material exhibits a photon wavelength of 2 nm, which is invisible to the naked eye. Therefore, it is confirmed that neither red nor blue laser light can reflect red or blue light. So what color does it appear? It is actually white light. This phenomenon can be clearly observed from the circled area in Figure 3. Conversely, this photonic material can also radiate ultrashort wavelengths similar to X-rays (between 0.01 nm and 10 nm).

Figure 4 shows observations under an ultra-high resolution electron microscope (using a 30 kV accelerating voltage and a 3.13 pA current). Because the photonic chip is placed in a vacuum chamber, it's impossible to irradiate the photonic material with light. Therefore, we observed the photonic material under conditions of uniform coating. Figure 4 clearly shows white light spots (circled), which is characteristic of the average photon wavelength of 2 nm. This photonic material will be widely used in photonic chips in the future to replace copper wires in electronic chips.