2026-09-15T04:49:07Zhttps://gredos.usal.es/oai/request

oai:gredos.usal.es:10366/1233652025-04-30T20:36:10Zcom_10366_133237com_10366_4512com_10366_3823col_10366_133238

An, Qiang Ren, Yingying Jia, Yuechen Vázquez de Aldana, Javier R. Chen, Feng 2014-06-26T07:43:47Z 2014-06-26T07:43:47Z 2013-03-13 Optical Materials Express 3 (4), 466-471 2159-3930 http://hdl.handle.net/10366/123365 Depressed cladding optical waveguides have been fabricated in a zinc sulfide (ZnS) crystal by femtosecond laser inscription. The structures support single- or multi-mode guidance at the mid-infrared wavelength of ~4 μm. The two-dimensional refractive index profiles of the single-mode waveguides have been reconstructed, and the modal profiles of TE and TM modes were calculated numerically, that show very good agreement with the measured near-field modal profiles. The minimum propagation losses of the multimode cladding waveguides at 4 μm were ~1.1 dB/cm for the TE polarization and ~1.3 dB/cm for the TM polarization. application/pdf eng Optical Society of America Waveguides Femtosecond lasers Microfabrication Mid-infrared 2209.10 Láseres 2209.09 Radiación infrarroja Mid-infrared waveguides in zinc sulfide crystal info:eu-repo/semantics/article info:eu-repo/semantics/openAccess