lap report Absorption and emission experiment

Abstract : mention relation between Transmittance and wavelength for (short pass filter ,band pass filter , colors filters ) In introduction: mention definition of Transmittance and Absorption and beer's law And writer the equation Procedure : Measure The spectrum of white light without any color or glass filter at the cuvette holder Then I got the reference data . next , I recorded data for optical filters , then I got Transmittance by dividing the spectrum of light transmitted by sample by the reference counts . finally I plotted graphs about transmission spectrum (Transmission vs wavelength) of the short-pass filters (450nm and 550 nm cutoff) and the bandpass filter (315-710 nm) only

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Red, Yellow pink card filter

wite light source

FGS 900M band pass filter

cuvette Holder

FESO50450

spectrometer

FESO550 , Short pass filter

optical fibers

Discussion + Results: in this experiment , although I didn't make the errors in steps of experiment,I faced some difficulty's to adjust the curve in excel because of inexperience, Also I was not faster in plotting the graphs, I hadn't enough time to study the absorption and emission spectrum of Rhodamine B. for this reason I only plotted two graphs about transmission spectrum (Transmission vs wavelength) of the short-pass filters (450nm and 550 nm cutoff) and the bandpass filter (315-710 nm) only . Conclusion:

Don t forgetReference