TY - JOUR
T1 - Sub-wavelength self-organization of chalcogenide glass by direct laser writing
AU - Almeida, Juliana M.P.
AU - Paula, Kelly T.
AU - Arnold, Craig B.
AU - Mendonça, Cleber R.
N1 - Funding Information:
We acknowledge FAPESP – 2013/05350-0 for the financing and for supporting JMP Almeida's internship at Princeton University , also for the current grants 2011/12399-0 and 2015/17058-7 , as well as the PU-USP partnership program. We additionally thank NSF ( EEC-0540832 and DMR-1420541 ), CNPq and CAPES for the financial support.
Funding Information:
We acknowledge FAPESP – 2013/05350-0 for the financing and for supporting JMP Almeida's internship at Princeton University, also for the current grants 2011/12399-0 and 2015/17058-7, as well as the PU-USP partnership program. We additionally thank NSF (EEC-0540832 and DMR-1420541), CNPq and CAPES for the financial support.
PY - 2018/10
Y1 - 2018/10
N2 - Chalcogenide glasses (GhGs) are quoted as a key material for the development of infrared technologies due to its unique optical properties. The right choice of processing technique is crucial to reach progress in this field, especially when achieving the nanoscale, to further comprise new functionalities to ChGs. Herein, we demonstrated the sub-wavelength self-organization of ChG with hierarchical nano/micro control by using ultrafast laser processing, representing an important step towards the fabrication of photonic devices of tailored architectures. Particularly, those findings are demonstrated through laser induced forward transfer with femtosecond pulses applied to As2S3 thin films, which enabled the controlled deposition of nanostructures within a micrometric region (with resolution on the order of 3 μm). The self-organized patterns exhibits periodicity with subwavelength dimensions on the order of λ/4, with λ ∼800 nm. In the best of our knowledge, the investigation addressed herein correspond to the first demonstration of self- organization of ChG using direct laser writing, extending the applicability of the method for materials nanostructuring.
AB - Chalcogenide glasses (GhGs) are quoted as a key material for the development of infrared technologies due to its unique optical properties. The right choice of processing technique is crucial to reach progress in this field, especially when achieving the nanoscale, to further comprise new functionalities to ChGs. Herein, we demonstrated the sub-wavelength self-organization of ChG with hierarchical nano/micro control by using ultrafast laser processing, representing an important step towards the fabrication of photonic devices of tailored architectures. Particularly, those findings are demonstrated through laser induced forward transfer with femtosecond pulses applied to As2S3 thin films, which enabled the controlled deposition of nanostructures within a micrometric region (with resolution on the order of 3 μm). The self-organized patterns exhibits periodicity with subwavelength dimensions on the order of λ/4, with λ ∼800 nm. In the best of our knowledge, the investigation addressed herein correspond to the first demonstration of self- organization of ChG using direct laser writing, extending the applicability of the method for materials nanostructuring.
KW - AsS
KW - Chalcogenide glasses
KW - Direct laser writing
KW - Femtosecond laser induced forward transfer
KW - LIFT
KW - Self-assembly
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U2 - 10.1016/j.optmat.2018.06.068
DO - 10.1016/j.optmat.2018.06.068
M3 - Article
AN - SCOPUS:85049910362
SN - 0925-3467
VL - 84
SP - 259
EP - 262
JO - Optical Materials
JF - Optical Materials
ER -