The aim of this study was to investigate the distribution of crimp in new jacquard fabric structures (in which one-layer and two-layer weaves are combined) in the fabric width and to create a method of crimp prediction. It was established that crimp was around 18.80% and changed within the limits of errors, i.e., a range of only ~4%, in the fabric width. It can therefore be said that the warp crimp was constant in the fabric width. Because the warp crimp of jacquard fabric changed insignificantly (within the limits of errors), it can be stated that the fabric-setting parameters and structural solutions were chosen and matched correctly, and such fabric can be woven on any jacquard weaving loom.
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http://dx.doi.org/10.3390/ma14185157 | DOI Listing |
The fiber Bragg grating (FBG) is fabricated by the femtosecond laser writing technique with a plane-by-plane (Pl-by-Pl) method in the double-cladding fiber (DCF). The refractive index modified (RIM) region formed by this method is 12 μm × 8 μm in size. Due to the Pl-by-Pl method, high-order Bragg resonances with reflectance greater than 99% can be achieved.
View Article and Find Full Text PDFThere has been an increasing need for small, low-cost, and low-power consumption optical transceivers for short-reach fiber links. Waveguide-integrated photodetectors (PDs) with wide bandwidth and high responsivity on Si photonics platforms are an essential element for these applications. We have fabricated an O-band membrane PD which is suitable for integration with high-performance III-V-based membrane devices such as lasers and modulators, and passive waveguide circuits on the Si photonics platforms.
View Article and Find Full Text PDFWe present a high-performance Ge/Si PIN photodetector that leverages the advanced Ge/Si hetero-bonding method. The sputtered microcrystalline Ge is utilized as the interlayer, in conjunction with Smart-Cut technology, to fabricate high-quality Si-based Ge films. The exfoliated Ge film exhibits a surface roughness of 0.
View Article and Find Full Text PDFThis paper presents an advanced exposure system that, we believe, for the first time, enables annular lithography to create micro- and mesostructures on curved surfaces. The principle of ring creation is based on an axicon zoom system whereas the exposure tool exhibits several features that enhance its performance over previous models. Its optical design features a high numerical aperture, resulting in narrow ring widths and high resolution.
View Article and Find Full Text PDFACS Appl Mater Interfaces
January 2025
Department of Engineering Design, Indian Institute of Technology Madras, Chennai 600036, India.
This study presents a novel optoporation technique using a titanium-coated TiO microstructure (TMS) device activated by an infrared diode laser for highly efficient intracellular delivery. The TMS device, fabricated with 120 nm titanium coating on a titanium dioxide (TiO) microstructure containing microneedles (height ∼2 μm and width ∼4.5 μm), demonstrates enhanced biocompatibility and thermal conductivity compared to the conventional TiO microstructure (MS).
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