Search Results - Hsiang-Chen Chui
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Impact of Mild Acid and Alkali Treatments on Cotton Fibers with Nonlinear Optical Imaging and SEM Analysis
Published 2025-07-01Get full textThis study investigates the structural effects of dilute acid and alkali treatments on cotton fibers, aiming to understand the influence of chemical pretreatment on cellulose morphology. Cotton samples were exposed to 1% sulfuric acid and 1% sodium hydroxide at 90 °C, and the resulting changes were...
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Design and fabrication of a SiC chiral lens using spiral microstructures
Published 2025-12-01Get full textPolarization devices are essential components in optical systems, enabling the control and tuning of light polarization. Silicon carbide (SiC) stands out in this context due to its high refractive index, low absorption, and resistance to environmental conditions. In this work, we present the design,...
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Single-Frequency External Cavity Green Diode Laser
Published 2017-01-01Get full textWe present a design of a single-frequency green InGaN external cavity diode laser (ECDL) with 40-mW output power and 10-MHz linewidth. The ECDL was mounted in the Littrow configuration, with an overall efficiency of approximately 52% and a tuning region of 8 nm. We analyzed the output eff...
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