Photochemistry spectral ranges

Looking ahead, coherent laser pulses covering the complete spectral range of valence bond excitation from the UV to the IR spectral region are becoming available (see, e.g., [119]), and we expect SPODS to increase in importance in coherently controlled photochemistry with applications ranging from reaction control within molecules up to discrimination between different molecules in a mixture and laser-based quantum information technologies. 

The photochemistry of acetone has been studied chiefly over the spectral range 2537 to 3130 A. The temperature has been varied from 0 to several hundred °C. The primary process in this wavelength region is almost solely... 

Volkamer, R., P. Spietz, J.P. Burrows, and U. Platt High-resolution absorption cross-section of Glyoxal in the UV/vis and IR spectral ranges. Journal of Photochemistry and Photobiology A Chemistry, 172 (2005b) 35-42, doi 10.1016/j.jphotochem.2004.11.011. 

Owing to the different and distinct absorption properties of the individual auxiliary oxidants or photocatalysts, the photo-initiated AOPs presented in Fig. 5-15 must be utilized at specific spectral bands covering the VUV, UV-C, UV-B, UV-A and parts of the visible range of the electromagnetic spectrum. This is outlined in Fig. 5-16. The photo-Fenton process using Fe(III) oxalate is probably the most favorable for solar photochemistry, since the quantum yield 0 is high (cf Tab. 6-4), and ferrioxalate absorbs up to X of 500 nm. 

Tunable lasers with their high spectral intensity selectively excite single quantum states in atoms and molecules in a wide range in the visible, ultraviolet and infrared part of the spectrum. Selective laser action was successfully applied in photophysics and photochemistry 78,79). Their applications on biomolecules could, in the future, achieve great importance in the control of complicated biochemical reactions. Selective laser stimulation acts mainly in two ways ... 

---