Title :
Tunable giant multi-photon absorption using seeded CdSe/CdS nanorod heterostructures
Author :
Sum, Tze Chien ; Xing, Guichuan ; Huan, Cheng Hon Alfred ; Chakrabortty, Sabyasachi ; Chan, Yinthai
Author_Institution :
Div. of Phys. & Appl. Phys., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
A clear strategy to enhance the MPA cross-sections whilst independently tuning the emissive wavelengths of semiconductor QDs using seeded CdSe/CdS nanorod heterostructures is presented. MPA cross-sections as large as 2-3 orders and two-photon pumped ASE with threshold fluence 1-2 orders smaller compared to CdSe/CdS QDs were achieved using these heterostructures.
Keywords :
II-VI semiconductors; cadmium compounds; nanorods; photoluminescence; semiconductor quantum dots; two-photon spectra; wide band gap semiconductors; CdSe-CdS; MPA cross-sections; emissive wavelength; photoluminescence spectra; seeded nanorod heterostructures; semiconductor quantum dots; tunable giant multiphoton absorption; two-photon pumped ASE; Absorption; Educational institutions; Lasers; Physics; Radiative recombination; Tuning;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2012 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4673-1839-6
