DÜŞÜK MALİYETLİ BİR RAMAN SPEKTROSKOPİ SİSTEMİ TASARIMI, KURULUMU VE NANOYAPILAR İLE BİRLİKTE TANIDA KULLANIMI

Abstract

When the light interacts with the substance, the photons that form the light may be absorptive or dispersible or may not interact with the material and may pass directly through the material. If the energy of the incident photon corresponds to the energy gap between the stationary state of a molecule and an excited state, the photon can be absorbed and the molecule becomes energized. Raman spectroscopy is based on the variation of the intensities of the light scattering from the molecules and atoms and the acquisition of a fingerprint signal specific to each structure. Being very flexible and configurable in many different ways is a significant advantage of Raman spectroscopy. Continuous improvements in modern optics, including small diode lasers, improved simple detectors and fiber optic connections, have led to the possibility of using Raman scattering for problems we have not thought of before. Contactless and non-destructive chemical analysis applications provide significant advantages. Commercial benchtop spectrometers are complex, expensive and limited to laboratory use. Portable handheld Raman spectrometers are commercially available, but are still expensive. There is a growing need for low cost and portable Raman spectrometer systems to enable field applications such as water and food quality monitoring, pathogen detection, pharmaceutical analysis, and many other new applications. This research focuses on the design of a simple, inexpensive and compact Raman spectrometer within the framework of the specified minimum criteria; Optical, mechanical and electronic design and fabrication, as well as development phases and differences of prototypes. We hope that this device and its derivatives will be used to spread Raman technology and trigger future developments.