Abstract
CdSe, Cu2Se and CdSe:Cu2Se nanocrystal (NC) thin films were synthesized using vacuum deposition technique. The open aperture Z-scan measurements carried out using 7 ns pulses at 532 nm revealed that the CdSe and Cu2Se samples exhibited saturable absorption (SA) at 30 µJ. A nonlinear optical switching from saturable absorption (SA) to reverse saturable absorption (RSA) is observed by increasing the laser input intensity.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have