PublicationPhysical Review LettersPaperDouble photon excitation in organic crystalsPhysical Review LettersView publicationAbstractNo abstract available.Home↳ PublicationsDate15 Jan 1963PublicationPhysical Review LettersAuthorsWarner L. PeticolasJohn P. GoldsboroughK.E. RieckhoffIBM-affiliated at time of publicationShare