KMITL Expo 2026 LogoKMITL 66th Anniversary Logo

Asymmetrical resonant cavity thin film devices designed for vanadium dioxide applications

Abstract

In this paper, Vanadium dioxide (VO2) thin-film devices with two different use cases have been redesigned to introduce an asymmetrical resonant cavity structure. The structure is designed with the goal of enhancing the optical performance of the central VO2 layer and has an anti-reflection property in the cold state. The advantages and limitations of such a design are discussed.

Objective

ปัจจุบันมีงานวิจัยเพื่อออกแบบอุปกรณ์ฟิล์มบางทางแสงเป็นจำนวนมาก เราสามารถใช้คุณสมบัติของวัสดุเปลี่ยนเฟส (PCMs) เพื่อออกแบบอุปกรณ์ที่ทำงานได้สองโหมด อีกทั้งยังมีการออกแบบฟิล์มบางให้มีโครงสร้างเป็นช่องสั่นพ้องเพื่อเพิ่มประสิทธิภาพและปรับย่านการทำงานให้เหมาะสม แต่วิธีการออกแบบช่องสั่นพ้องปกติไม่สามารถใช้ได้กับวัสดุเปลี่ยนเฟส งานวิจัยนี้จะเป็นการเปรียบเทียบวิธีการออกแบบช่องสั่นพ้องที่ไม่สมมาตรเพื่อแก้ปัญหาข้างต้น โดยจะเทียบกับวิธีปกติของอุปกรณ์ฟิล์มบางในงานวิจัยที่มีอยู่ โดยแสดงถึงข้อดีและข้อจำกัดของวิธีการออกแบบใหม่นี้

Other Innovations

Texture modification and quality improvement of restructured chicken meat block from spent laying hen.

คณะอุตสาหกรรมอาหาร

Texture modification and quality improvement of restructured chicken meat block from spent laying hen.

Spent hens are laying hens that are over 18 months to 2 years old and no longer productive. The texture of spent hen meat is significantly tougher compared to broiler chickens, capons, and native chickens. Therefore, to increase the value of spent hens, a study was conducted to modify the texture of the meat by restructuring it with carrageenan and tenderizing it by marinating it in bromelain solution at different concentrations. The experiment found that restructuring with carrageenan and using bromelain enzyme resulted in a newly formed product and significantly improved the tenderness of the meat compared to chicken meat that was not treated with carrageenan and bromelain enzyme.

Read more
Enhancing Sustainable Fish Gelatin Properties through Furcellaran Incoporation: Innovations in Eco-friendly Gelling Techniques

คณะอุตสาหกรรมอาหาร

Enhancing Sustainable Fish Gelatin Properties through Furcellaran Incoporation: Innovations in Eco-friendly Gelling Techniques

Fish gelatin is increasingly recognized as an alternative source of gelatin, but its use has been limited due to weak gelling properties. To address these issues, the effect of furcellaran, a gelling agent, was examined at various levels (25-100% FG substitution) on the structural and physicochemical properties of FG gels. As the amount of FUR increased to 25%, the FG/FUR gel showed improved hardness and gel strength (P<0.05). Additionally, increasing FUR levels led to higher gelling and melting points, showing a dose-dependent relationship. Microstructural analysis revealed that adding FUR created a denser gel network with smaller gaps. SAXS scattering intensities also increased as FUR concentration rose. Overall, adding FUR improved the gelling properties of FG without negatively affecting springiness and syneresis, enhancing gel strength and gelling temperature.

Read more
Mahachanok mango sauce

คณะอุตสาหกรรมอาหาร

Mahachanok mango sauce

The Mahachanok mango sauce is crafted from low-grade mangoes sourced from Ban Nong Bua Chum in Kalasin Province. Utilizing advanced food science technology, it effectively reduces agricultural waste and enhances product quality. This sauce is enriched with prebiotic fiber that supports the growth of beneficial gut microorganisms. With low sugar content, it is a healthy choice free from artificial colors and flavors. Its rich, natural taste makes it versatile, perfect for enhancing a wide variety of dishes, both savory and sweet.

Read more