Fig. 1. Spectral relative intensity distribution. (a) Mie-Rayleigh scattering spectrum; (b) pure rotational Raman spectra

Fig. 2. Spectral intensity diagram of solar radiation

Fig. 3. Ozone absorption scattering cross sections of

Fig. 4. Measurement uncertainty of relative temperature under different temperature pairs (All ΔT are the results of the ratio processing of the minimum value of the corresponding graph). (a) Anti-Stokes (225 K, 220 K); (b) Anti-Stokes (250 K, 245 K); (c) Anti-Stokes 270 K; (d) Stokes (225 K, 220 K); (e) Stokes(250 K,245 K); (f) Stokes (275 K,270 K)

Fig. 5. Schematic of solar-blind ultraviolet pure rotational Raman lidar system

Fig. 6. Diffraction grating spectrometers. (a) Single diffraction; (b) double diffractions

Fig. 7. Comparison of diffraction spots of grating spectrometer. (a) Single diffraction; (b) double diffraction

Fig. 8. triple-diffraction double grating polychromator

Fig. 9. Comparison of diffraction spots. (a) Double diffraction spot; (b) triple diffraction spot

Fig. 10. Effect ofozone on detection of solar-blind Raman lidar. (a) Difference of atmospheric transmission due to ozone absorption cross section of pure rotational Raman spectra; (b) effect of atmospheric transmission with and without ozone absorption

Fig. 11. Fluorescence intensity of biomolecules for 266 nm excitation[22]

Fig. 12. Simulation results of solar-blind ultraviolet pure rotational Raman lidar. (a) Signal intensity of each channel; (b) signal-to-noise ratio of each channel