Investigation of the luminescence of NaCl particles exposed to CO2 laser radiation

Measurements were made of the relationship between the duration of the luminescence observed when an NaCl particle passed through a focused CO₂ laser radiation beam (P_s~10⁴ W/cm²) and the particle residence time in the focal zone. It was found that the flash duration was appreciably (4–10 times) shorter than the time taken for a particle to pass through the focal zone. Measurements were made of the luminescence intensity distribution in the 413–822 nm range and some other characteristics of the luminescence were determined.