Research progress of ocean laser remote sensing technology(invited)

Research on retrieval algorithm of middle atmospheric temperature using Rayleigh lidar based on Kalman filter

“…Nowadays, the main equipment for detecting the temperature of the middle atmosphere are sounding balloons, rockets, satellites, lidars, and so on 1 . Lidar is a kind of active remote sensing detection instrument, which has the characteristics of large detection range, high spatio-temporal resolution, and high precision, and can realize continuous observation of temperature with high spatio-temporal resolution 2 . In 1980, Hauchecorne and Chanin 3 proposed the Chanin-Haunchecorne (CH) method.…”

Resonance scattering by a rotating cylinder

“…This is due to the total internal reflection of light, where electromagnetic waves are strongly confined in a microcavity with circular symmetry, and the phenomenon is also known as the whispering gallery mode (WGM). The WGM has very small internal losses and is used in fields such as microlaser optics [4] , optomechanics [5] , environmental media/thermal sensing [6,7] , and the detection of biomedical molecules and viruses [8] at present. As early as 1908, Mie theoretically investigated the whispering gallery mode in a spherical cavity indirectly through scattering spectra [9] .…”

Photonic hooks generated by a rotating dielectric sphere

“…Previously, we designed a non-reciprocal system that is based on the Magnus effect, which causes the symmetry of the electromagnetic field formed by a rotating cylinder illuminated by a plane wave to be broken, leading to a PH phenomenon when it interacts with the plane wave [28] . This study combines the Magnus effect with PH for the first time, largely expanding the prospects for applications such as optical tweezers [29] and particle manipulation. Based on this study, this paper focuses on the extension of the Magnus effect to a certain system of a homogeneous isotropic dielectric sphere rotating at a constant angular velocity interacting with a plane wave.…”

“…3 shows the plane wave illumination on a rotating dielectric sphere with different polarization modes. In our simulations, the size parameters 29.788 ka  It is worth noting that the white and black lines represent the particle boundaries and the direction of incidence of the incident wave, respectively.…”