1 | It s also the first germanium laser to operate at room temperature. | |
2 | Changing the angle and length of the bonds between germanium atoms also changed the energies required to kick their electrons into the conduction band. | |
3 | The atoms of the cooling germanium tried to maintain their alignment with the silicon atoms, so they ended up farther apart than they would ordinarily be. | |
4 | In an indirect-band-gap material like germanium, the momentum of the lowest-energy state is misaligned with that of the valence band (yellow and black arrows). | |
5 | According to the group s theoretical work, phosphorous doping works best at 1020 atoms per cubic centimeter of germanium, Kimerling explains. |