Engineering Macro-Sized Optical Materials, Miniaturized Instrumentation and Methods: Tuning Quantum-, Nano-Scales from the Near Field to Far Field Applications

In this commentary article, the discussion is about how optics from tiny-sized structures formed by a few atoms and molecules was the beginning of higher-sized effects and phenomena forming part of micro- and macro-sized materials with targeted functions, smart responses, and instrumentation of varied dimensions used daily for well-being. In this manner, the optical properties developed by varied molecules with particular capabilities to absorb and filter intervals of wavelengths and related colours could participate in the development of colored lens and crystals. In this context, the importance of spectroscopic techniques and methods in the characterization of new synthetic molecules as well as from natural sources in many Green chemistry approaches, and related soft materials is noted. Moreover, the control of quantum and nanoscale phenomena provides new types of high-brightness emitters that could tune optoelectronics and light emissions incorporated in many optical setups, instrumentation, and tools. This is the case of LEDs (Light-Emitting Diodes), lamps, Lasers, and more innovative sources of light. In this context, it should be noted that the performance of these new materials available on the market and the low cost related to high-impact research are still under focus. The generation of non-classical light and applications by tuning highly intense electromagnetic fields are of current interest in multidisciplinary developments. In addition, energy generation, conduction, and quantum and optical computing signaling are currently the highest-ranked industries advancing new instrumentation, devices, and the next generation of technology. In this regard, chips, telephones, solar cells, semiconductors, and computers are involved in our daily tasks and routines. So, by tuning optics and photonics at different levels, it can foster well-being, peace, and security in current times. In this way, it was possible to highlight the main recent developments associated with high-impact technology.