Seminarium Fizyki Ciała Stałego

This presentation explores the landscape of terahertz (THz) optics, focusing on its notable achievements, current challenges, and future prospects. THz radiation, characterized by wavelengths considerably larger than those of visible light, induces substantial diffraction effects, profoundly impacting its interaction with matter. Moreover, the high coherence exhibited by many THz sources facilitates precise wave manipulation. However, in many cases we are within the near-field diffraction zone which has its peculiarities.THz radiation holds considerable promise across diverse fields, including medicine, non-destructive testing, and telecommunications. In medicine, THz waves offer non-invasive imaging capabilities, enabling detailed examination of biological tissues. Additionally, THz technology finds application in non-destructive testing, facilitating the detection of structural anomalies in materials without causing damage. Importantly, in modern telecommunications, THz radiation emerges as a transformative tool, facilitating high-speed data transmission and bandwidth expansion.The advancement of THz optics is closely intertwined with the exploration of various materials and manufacturing techniques. Different materials, ranging from dielectrics to semiconductors, offer unique properties conducive to THz wave manipulation. Furthermore, innovative manufacturing methods such as lithography, additive manufacturing, and metamaterial engineering play crucial roles in the development of novel THz optical devices.In summary, this presentation sheds light on the different achievements, existing challenges, and promising avenues in the realm of terahertz optics. By emphasizing its versatile applications and the role of material science and manufacturing innovation, it underscores the transformative potential of THz technology in shaping future advancements.