Optical devices that are also electronic make up the field of optoelectronics. These devices can be run on electricity and convert that electricity into light. Similarly they can be run on light and convert that light into electricity. It just depends on the type of application that the device is needed for. Optoelectronic devices are devices that control light to perform certain jobs or applications. These devices use all forms of light including visible light as well as invisible light such as gamma rays, x-rays, ultraviolet, and infrared (https://en.wikipedia.org/wiki/Optoelectronics). There are five different types of optoelectronic devices, photo diodes, solar cells, light emitting diodes, optical fiber and laser diodes. All of these types were designed to get a different job done. (https://www.elprocus.com/optoelectronics-devices-with-their-applications)These optoelectronic devices are also designed to optimize light absorption and emission. (https://ecee.colorado.edu/~bart/book/book/chapter4/ch4_6.htm)They are used to light up things like flashlights and a lot of LED bulbs in our everyday lives. They are also used in cameras, cameras are designed to capture light and produce pictures. Optical devices are designed to convert electrical signals into infrared radiation or infrared energy(http://searchnetworking.techtarget.com/definition/optoelectronics). Since this field has to do with electronic devices, it gets more and more complicated and advanced everyday.
In Theoretical study of enhancing the piezoelectric nanogenerator’s output power by optimizing the external force’s shape, by Qi Xu and Yong Qin, these two researchers talk about how they improved the output of a nano-generator. These nano-generators are used to self power devices by harvesting environmental mechanical energies and converting them into energy that can be used. They gave the generator more power by changing the shape of the generator, they curved the generator and that made it able to produce more. They also put more amplitude and a higher frequency into the generator and that increased the output a lot also.
In Shaped cathodes for the production of ultra-short multi-electron pulses by Ariel Alcides Petruk, Kostyantyn Pichugin, and Germán Sciaini, they talk about how they used microwaves to make the ultra short multi electron pulses. These pulses are used in X-rays and they are also used light up atoms that are in motion. By using microwaves in this process, these researchers were able to greatly reduce the time that these multi-electron pulses take. The shorter the time, the better.
In Magneto-optical color imaging of magnetic field distribution by Yosuke Nagakubo, Qi Liu, Gengjian Lou, and Takayuki Ishibash, these researchers talk about how they created a technique that will allow people to see magnetic field distributions happening in real time. With this method people will be able to see these with the naked eye. In this experiment they used either a white LED or a green and yellow LED. They found that by using these colored LEDs and using a ferrite magnet and a magneto-optical plate that had a bismuth film instead of an iron film, that they were able to see magnetic field distributions happening in real time and with just the naked eye too. They did not need any assistance with a microscope or anything.