A scholarly article, written by lead author Zakya Kafafi, the editor of the Journal of Photonics for Energy, examines the development of the science behind lighting from 1011 until Albert Einstein's discovery of the photoelectric effect in 1905. The paper, entitled “The Role of Photonics in Energy", looks at the conservation of energy dealing with photonics. 

According to the article, lighting accounts for approximately 22% of electric energy consumption today. With the development of LED lighting, energy-saving white light sources became a reality. Organic LEDs have begun to be used for commercial applications for the past few years. These LEDs emit light due to an organic compound responding to an electric current. One of the more important applications of LED lighting is likely sitting in your pocket or desk. Computer monitors, phones and other flat panel display now use LEDs, over the plasma screen display. As the cost of organic LEDs continues to fall, they become a more and more likely future for TV screens. 

Additionally, photonics has enabled the wide array of communication through optical fibers that we now enjoy today. Plus, the lower power consumption rates are leading to a transition to this technology. The authors of this paper suggests that we are quickly moving towards high-speed data communications at the chip-level to enable the coming of the information age in and energy-efficient way. 

Journal article examines developments in lighting efficiency. SPIE Newsroom. 11/11/15