Abstract
We report an unusual phenomenon in amplified spontaneous emission (ASE) from cyano-substituted oligo(p-pheny lenevinylene) (CNDPASDB) single crystals, i.e., the ASE peak wavelength, exhibits varied dependence on the pumping wavelength λex. The former is basically kept a constant when λex<505 nm, while a rapid redshift from 560 to 572 nm occurs when λex>505 nm. The observation is different from stimulated Raman resonant scattering (SRRS) in two following aspects: the nonconstant Stokes shift and a much broader emission linewidth. A model describing competition between the stimulated emission and vibration relaxations has been proposed to interpret the underlying mechanism.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
