Introduction: The Backbone of Digital Infrastructure A data center is a centralized facility designed to house computing infrastructure—servers, storage systems, networking equipment, and cooling mechanisms—that collectively enable the storage, processing, and distribution of vast amounts of data. Once dominated by bulky mainframes, modern data centers have evolved into agile, cloud-integrated …

Introduction: Beyond the Linear World In the world of optics and photonics, light is often treated as a linear wave, where its behavior is predictable and proportional to the input. But beyond this familiar regime lies a fascinating realm where light interacts with matter in ways that break these simple …