As a highly sensitive detection technology, incoherent broadband cavity enhanced absorption spectroscopy (IBBCEAS) have successfully measured a variety of trace gases.  This paper describes an incoherent broadband cavity enhanced absorption spectroscopy(IBBCEAS) instrument with 365 nm LED as the light source for measuring absorption cross section of SO₂ from 357 to 385 nm which is arising from the spin-forbidden a ³B₁--X¹A₁ transition.  The result shows the potential of the IBBCEAS system for measuring weak absorption cross section.
IBBCEAS
As a highly sensitive detection technology, incoherent broadband cavity enhanced absorption spectroscopy (IBBCEAS) have successfully measured a variety of trace gases.  This paper describes an incoherent broadband cavity enhanced absorption spectroscopy(IBBCEAS) instrument with 365 nm LED as the light source for measuring absorption cross section of SO₂ from 357 to 385 nm which is arising from the spin-forbidden a ³B₁--X¹A₁ transition.  The result shows the potential of the IBBCEAS system for measuring weak absorption cross section.
IBBCEAS