2 results about "Resonance line" patented technology

This invention relates to the field of ultrasensitive magnetic measurement technology based on quantum sensing, and in particular to a single-beam zero-magnetic-field dual-axis vector magnetometer and its usage and applications. This invention employs a single probe laser beam to simultaneously perform pumping and detection functions, and innovatively combines the tensor-vector polar moment conversion (AOC) effect, magnetic field modulation, and large-amplitude modulation of the optical frequency. This significantly reduces the resonant linewidth of the magnetometer while suppressing photon shot noise and detector electronic noise, and achieves dual-axis magnetic field measurement in a zero-magnetic environment. In laboratory desktop experiments, a sensitivity of level 10 can be achieved.

The invention discloses a high-sensitivity reconfigurable sensor and a tuning method, the sensor is of a laminated structure, the uppermost layer is a sensor body, the middle layer is a dielectric substrate, and the lowermost layer is of a microstrip line structure; the sensor body is formed by combining an artificial local surface plasmon resonance structure and a circular coupling structure, and a tiny gap is formed between the artificial local surface plasmon resonance structure and the circular coupling structure. According to the sensor, the local field enhancement characteristic of the artificial surface plasmon is utilized, a sharp Fano resonance line shape is excited through multi-mode interference, and the sensing sensitivity is greatly improved; meanwhile, the PIN diode is introduced, dynamic reconstruction of a surface plasmon mode is achieved by changing the bias voltage of the PIN diode, and the sensor has the advantages of being high in sensitivity, high in resonant frequency and adjustable in sensing frequency.