An optical recording medium having {HEAD ~ a recording layer} provided on {TAIL ~ a substrate}, said recording layer comprising an organic thin film containing at least one diazulenium salt compound represented by the formula , or , and a recording method using it 
provided on
An optical recording medium having { HEAD ~ a recording layer } provided on { TAIL ~ a substrate } , said recording layer comprising an organic thin film containing at least one diazulenium salt compound represented by the formula , or , and a recording method using it
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH