CD/FDCD Spectrometer

For our circular dichroism studies we are using a Jasco J1500 CD spectrometer. 

In the current setup we are not only able to detect CD spectra for circular dichroistic behaviour of chiral samples with a transmitting light beam, but also FDCD spectra. 

FDCD is the abbreviation for fluorescence-detected CD spectroscopy which measures the differential fluorescence intensity that results from excitation with left-handed and right-handed circularly polarized light. While a CD spectrum can be understood as analogues technique to an absorption spectrum, FDCD can be understood as an excitation spectrum. 

Despite FDCD spectroscopy requires luminescent materials to be probed for their chiroptical properties, it offers a higher sensitivity then "normal" CD-spectroscopy.  

 

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