Optics

Nanostructured polymer foil appears white without environmentally hazardous titanium dioxide -- Beetle's chitin scales used as a modelCredit: Julia Syurik, KIT Polymer foils that are extremely thin and characterized by a high light…

New method for generating quantum-entangled photons in a spectral range of light previously inaccessible developedCredit: Michael Kues/PQT An international team with the participation of Prof. Dr. Michael Kues from the Cluster…

Scientists have developed a way of extracting a richer palette of colours from the available spectrum by harnessing disordered patterns inspired by nature that would typically be seen as black. Colours that we see in nature often come…

Credit: University Rostock / Alexander Szameit Professor Ronny Thomale holds a chair for theoretical condensed matter physics, the TP1, at the Julius-Maximilian University of Würzburg. The discovery and theoretical description of new…

Credit: by Hong-Fei Li, Xiao-Qi Liu, Chen Lyu, Jelena Gorbaciova, Li-Li Wen, Guo-Gang Shan, Peter. B. Wyatt, Huan-Qing Ye and William P. Gillin Photonic Integrated Circuits (PICs), particularly those built from silicon, are being…

Lasers grown on microelectronics-compatible silicon are important step toward smart, integrated photonic sensors WASHINGTON -- For the first time, researchers have fabricated high-performance mid-infrared laser diodes directly on…

Scientists probe how excited states of matter behave in phosphorene -- a two-dimensional material with unusual propertiesCredit: OIST Since its discovery in 2014, phosphorene - a sheet of phosphorus atoms only a single atom thick - has…

What is interaction and when does it occur? Intuition suggests that the necessary condition for the interaction of independently created particles is their direct touch or contact through physical force carriers. In quantum mechanics,…

Credit: Copyright: Forschungszentrum Jülich / Nils von den Driesch Transistors in computer chips work electrically, but data can be transmitted more quickly by using light. For this reason, researchers have long been looking for a way to…

Credit: by Kai-Kai Liu, Qian Liu, Dong-Wen Yang, Ya-Chuan Liang, Lai-Zhi Sui, Jian-Yong Wei, Guo-Wei Xue, Wen-Bo Zhao, Xue-Ying Wu, Lin Dong, Chong-Xin Shan... In recent years, lead halide perovskites have emerged as promising materials…

Credit: Mingchuan Shao, Fei Liang, Haohai Yu, Huaijin Zhang Nonlinear optical frequency conversion is an important technique to extend the wavelength of lasers which has been widely used in modern technology. The efficiency of frequency…

Credit: by Chenglong Li, Hailu Wang, Fang Wang, Tengfei Li, Mengjian Xu, Hao Wang, Zhen Wang, Xiaowei Zhan, Weida Hu, Liang Shen Photodetectors, a key optoelectrical component for the translation of optical signals into electrical…

Credit: © Lunghammer - TU Graz Markus Koch, head of the research group Femtosecond Dynamics at the Institute of Experimental Physics at TU Graz, and his team develop new methods for time-resolved femtosecond laser spectroscopy to…

Unconventional material emits light that exceeds limits of natural lawCredit: Rensselaer Polytechnic Institute TROY, N.Y. -- Could there be a new kind of light in the universe? Since the late 19th century, scientists have understood that,…

Göttingen research team produces new nanosheets for near infrared imagingCredit: University of Goettingen Egyptian blue is one of the oldest manmade colour pigments. It adorns, for instance, the crown of the world famous bust of…

The retrieval of phase of electromagnetic fields is one of the most important problems in optics as it allows the shape of transparent objects, including cells, to be quantified using visible light. Phase is a quantity that relates to the…

Credit: by Stefan Skalsky, Yunyan Zhang, Juan Arturo Alanis, H. Aruni Fonseka, Ana M. Sanchez, Huiyun Liu and Patrick Parkinson Over the past decade, the idea of photonic computing - where electrons are replaced with light in…

Credit: by Zhen Wang†, Hao Sun†, Qiyao Zhang, Jiabin Feng, Jianxing Zhang, Yongzhuo Li, and Cun-Zheng Ning In a new paper published in Light Science & Application, researchers from Tsinghua University and Arizona State University…

Credit: BY Xiangxi Cai, Liping Ye, Chunyin Qiu, Meng Xiao, Rui Yu, Manzhu Ke, Zhengyou Liu The discovery of new topological states of matter has become a vital goal in fundamental physics and material science. A three-dimensional (3D)…

Credit: by Zhen-Ze Li, Lei Wang, Hua Fan, Yan-Hao Yu, Qi-Dai Chen, Saulius Juodkazis and Hong-Bo Sun Lasers are becoming one of the dominant tools in the current manufacturing industry. Much effort has been devoted to improving the…