How to calculate and draw the Absorption Spectra from reflectance and transmission

How to calculate Absorption spectra of composites from reflectance and transmission using OriginLab

[@simophotographie5434]

Jay mn 3nd zakaria

[@faheemwani1996]

sir how to calculate dielectric strength, relaxation time and absorption coefficient from dielectric data

[@NakkaPraveenkumar-re8wb]

How to convert reflectance to absorption replay me ane one?

[@preetisingh8946]

how to convert transmittance CSV file into absorbance???

[@mahammiran9890]

HOW TO CONVERT REFLECTANCE INTO TRANSMITTANCE?

[@raniaawad7667]

Can I convert the absorption to reflectance?

[@malihaparvin4224]

YES, YOU CAN , A= -log(%T)
So, in order to convert the absorption data to transmission, we need to undo the log function
In excel , if column B2 is absorption data then column C= (10^(-B2))*100 Will give %T.

[@raniaawad7667]

@@malihaparvin4224 thanks sis, I wanted to measure reflection and I got it eventually by this relation R=100-T-A in Excel

[@hamzaigr272]

Hamza abdos 😂😊

[@dofastdofast4861]

jay mn 3ndk khooya l7alabi