Chitosan from Crab Shell Waste for Soft Lithography of Bioplastic Diffraction Gratings

Bioplastic diffraction gratings are fabricated from chitosan prepared from crab shells through a soft lithography replication process. Atomic force microscopy and diffraction experiments with the chitosan grating replicas indicate the successful copying of periodic nanoscale groove structures corres...

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Bibliographic Details
Main Authors: Gumayan, Efren G., Dimzon, Ian Ken D, Guerrero, Raphael
Format: text
Published: Archīum Ateneo 2023
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Online Access:https://archium.ateneo.edu/physics-faculty-pubs/149
https://doi.org/10.1364/AO.483336
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Institution: Ateneo De Manila University
Description
Summary:Bioplastic diffraction gratings are fabricated from chitosan prepared from crab shells through a soft lithography replication process. Atomic force microscopy and diffraction experiments with the chitosan grating replicas indicate the successful copying of periodic nanoscale groove structures corresponding to densities of 600 and 1200 lines/mm. First-order efficiency of bioplastic gratings is comparable to the output of elastomeric grating replicas.