Researchers from Tokyo Tech have developed a highly sensitive diamond quantum magnetometer based on CW-ODMR that enables magnetoencephalography (MEG) under practical ambient condition. This diamond quantum magnetometer, which utilizes nitrogen-vacancy (NV) centers, can achieve millimeter-scale resolution MEG and is expected to enable MEG imaging without the need for magnetic shielding room.

Hamamatsu Photonics announced yesterday that it has completed the acquisition of NKT Photonics. The company stated that this acquisition will help it drive its technology to the next level and accelerate its business growth in the semiconductor, quantum, and medical fields.

Researchers from RIKEN and NTT Research have recently created an ‘optical conveyor belt’ in semiconductor-based microcavities using interference between two lasers to move the polaritons formed by light and matter inside the microcavity. This is expected to pave the way for device innovations in quantum metrology and quantum information science. In the study, the researchers fine-tuned the frequency difference between the two lasers to enable the conveyor belt to operate at speeds close to the order of 0.1 percent of the speed of light.