Hot mirror: A mirror that reflects near-infrared light, which causes heat.

The rapid spread of generative AI and the expansion of cloud services have placed data centers around the world in the midst of unprecedented levels of capital investment and technological innovation. The volume of data that needs to be processed continues to increase exponentially, and along with this, the heat generation, power consumption, and demands on communication bandwidth per server rack are becoming increasingly severe each year. Traditional electrical wiring for signal transmission faces physical barriers such as signal degradation and increased power consumption as transmission distances grow, leading to a rapid rise in expectations for technologies that utilize "light" as a solution. Optical communication, optical interconnects, optical sensing, and high-efficiency heat dissipation and shielding structures—many of these foundational technologies supporting data centers are deeply connected to optical thin films and the associated fine patterning processing technologies. Chapter 1: Three Technical Challenges Faced by Data Centers Chapter 2: Optical Thin Films Supporting Optical Communication and Optical Interconnects Chapter 3: Contributions of Fine Patterning Processing to High-Density Implementation Chapter 4: The Potential of Optical Thin Films in Surrounding Technologies such as Heat Dissipation and EMI Shielding Conclusion: Technologies Supporting Next-Generation Data Centers Together For more details, please visit our website.

Light includes "visible light," which can be seen by the human eye, and invisible light. Near-infrared (NIR) is one type of "invisible light" located right next to visible light. In fact, it is deeply involved in various devices and industrial processes around us, and its importance has been increasing in recent years. We will explain clearly from the basics of "What is near-infrared?" to the fields in which it is used, and its relationship with optical coating technology. 01: What is near-infrared? — Organizing the "companions" of light 02: Where is near-infrared used? — Expanding application fields 03: The relationship between near-infrared and optical coatings — The power of "thin films" that enhance performance 04: The precision required for near-infrared filters Summary: The key to utilizing near-infrared lies in precise optical thin films Near-infrared compatible filter "Artisan Infrared" For more details, please visit our company website.

Among optical components, metal mirrors possess characteristics such as "broadband and stable reflection performance," "minimal variation in properties with respect to incident angle," and "excellent durability," making them a crucial factor that influences the reliability of devices. They can cover not only visible light but also infrared (IR) and even ultraviolet (UV) regions, leading to their widespread adoption from fundamental research to industrial applications. In this article, we will thoroughly compare the types of representative metal mirrors and their features, clearly organizing selection points based on applications and purposes. We aim to provide helpful information for those wondering, "Which metal is best suited for my device?" 1. The mechanism of metal mirrors and representative coating materials 2. Evaluation criteria for major metal mirrors 3. Aluminum mirrors (Al) 4. Silver mirrors (Ag) 5. Gold mirrors (Au) 6. Aluminum enhanced mirrors (Al Enhanced Mirror) 7. Recommended metal mirrors by application (selection guide based on technical background) 8. The added value that Adachi New Industry can provide (technology + proposal capability)

Modern advanced technology relies on precisely manipulating parameters such as the wavelength, direction, and intensity of light. At the center of this light control is the optical mirror. The basic function of an optical mirror is to reflect incident light in a specific direction with high efficiency, but it goes beyond being just a reflective surface. Depending on the application, advanced optical performance is required, such as "which wavelengths to reflect or transmit," "how much reflectivity to achieve," and "how accurately to focus and form images." - The role and importance of optical mirrors - The two main types of mirrors: metallic mirrors and dielectric mirrors - Metallic mirrors: basics and characteristics of reflection - Dielectric mirrors: technologies that achieve high reflectivity - Comparison table: contrast between metallic mirrors and dielectric mirrors - Specific examples of differentiation based on applications - Summary and outlook: the importance of technology selection and contributions to industry For more details, please visit our company website.