title: Low threshold power density for the generation of frequency up-converted pulses in bismuth glass by two crossing chirped femtosecond pulses.
abstract: We investigated the generation of frequency up-converted femtosecond laser pulses by nondegenerate cascaded four-wave mixing (CFWM) in a bismuth-oxide glass (BI glass). Broad-bandwidth light pulses with different propagation directions were simultaneously obtained by using two small-angle crossing femtosecond laser pulses in BI glass. Experimental results show that the threshold power density for the generation of broad-bandwidth femtosecond pulses in BI glass is one order of magnitude lower than that in fused silica.
authors.affiliation: Key Laboratory for Physical Electronics and Devices of the Ministry of Education, School of Electronics & information Engineering, Xi’an Jiaotong University, Xianning-xilu 28, Xi’an, 710049, China.
authors.forename: Hang
authors.initials: H
authors.lastname: Zhang
authors.forename: Hui
authors.initials: H
authors.lastname: Liu
authors.forename: Jinhai
authors.initials: J
authors.lastname: Si
authors.forename: Wenhui
authors.initials: W
authors.lastname: Yi
authors.forename: Feng
authors.initials: F
authors.lastname: Chen
authors.forename: Xun
authors.initials: X
authors.lastname: Hou
mesh_terms: D001729:Bismuth / Q000737:chemistry*; D004867:Equipment Design; D005898:Glass / Q000737:chemistry*; D007834:Lasers; D017711:Nonlinear Dynamics; D055095:Optics and Photonics / Q000295:instrumentation* / Q000379:methods*; D012031:Refractometry / Q000295:instrumentation / Q000379:methods; D012822:Silicon Dioxide / Q000737:chemistry
chemical_list: D012822:Silicon Dioxide; C033301:bismuth oxide; D001729:Bismuth