Peter was born in Boston. Sorokin and his colleague J. R. Lankard, at IBM Research Laboratories, used a ruby laser to excite a near infrared laser dye.
Their report was quickly followed by that of F. P. Schafer.
In 1974 Peter received the Albert A. Michelson Medal from the Franklin Institute.
In 1983 Peter was awarded the Comstock Prize in Physics from the National Academy of Sciences and in 1984 the Harvey Prize from Israel’s Technion.
In 1991 he received the first Arthur L. Schawlow Prize in Laser Science from the American Physical Society.
Peter has been an IBM Fellow since 1968.
He was also a Fellow of the Optical Society of America. Sorokin died at the age of 84 on 24 September 2015.
Peter died at age 84 on September 24, 2015.