Photochemical hole burning of tetraphenylporphin in phenoxy resin at 4.2–80 K

Abstract
Photochemical hole burning was performed with tetraphenylporphin doped in phenoxy resin (aromatic polyhydroxyether) at 4.2–80 K. Thermal stability of a hole burnt at a low temperature (4.2 K) and hole formation at high temperatures are studied for this system in order to obtain information on the dephasing and structural relaxation in the system.