Caracterización de microondas y sus aplicaciones en el análisis estructural de cristales 2D en el laboratorio de enseñanza

Abstract

In our daily environment, manipulating TV controls, car alarms, cell telephones and even in the kitchen, we usually take advantage of infrared, ultrasonic and microwave technologies. Nevertheless university students do not always have the opportunity to study such frequencies in the teaching laboratory. In this work, we introduce microwaves to be studied experimentally just as an electromagnetic phenomenon capable to be scattered, polarized, diffracted, absorbed and so on. It is comparable to the way that visible light behaves. Recognizing the didactic power of image in teaching process, we decided to get an image of microwave diffraction patterns as they are observed for visible light and X-ray on photographic films. To get such images, measurements of intensities are made and a suitable software is used to obtain a pattern of the radiation. Difficulties in carry out proposed experiments are reported and some techniques and procedures are suggested to obtain best results on emulating X-ray diffraction and structural analysis methods used for actual crystals, we have obtained the analogous diffraction pattern from two dimensional crystalline models exposed to microwaves.