Search Results for Optical elements

... of the semiconductor area substituted by an optical element. Two different definitions of the concentration factor are possible, i.e., based on the geometrical concentration or the power concentration. Both definitions are interlinked by optical efficiency. FIG. 7.6 Fundamentals of CPV. Impact factors on CPV...

... insights and evidence on challenges, pitfalls, and supporting elements for teaching/learning optics. This contribution aims to portray the current status of empirical research in the field of teaching/learning optics at the secondary level and to give an overview of research interests and research-related...

..., important contributor to the learning conversation.” Drawing ray diagrams One specific element in learning optical phenomena is drawing ray diagrams. However, research has shown that students do not readily accept this representation and struggle with drawing and interpreting the ray diagrams ( Galili...

... ,” Physica B   301 , 295 – 298 ( 2001 ). 10.1016/S0921-4526(01)00258-7 Al-Douri , Y. , Feng , Y. P. , and Huan , A. C. H. , “ Optical investigations using ultra-soft pseudopotential calculations of Si0.5Ge0.5 alloy ,” Solid State Commun.   148 , 521 – 524 ( 2008 ). 10.1016/j.ssc...

..., computer chips, logic elements and smarter sensors. The advantages and applications of carbon nanotube for energy storage and conversion for photovoltaics, green nanocomposite design, electrochemical super capacitor, lithium-ion batteries, hydrogen storage and fuel cell are investigated by Tan et al...

... Types of materials V_vol Volume O Optical components Physics experiments with physical computing technologies: A RoadMap Our vision in this paper is to provide an extensive survey, in terms of a roadmap, regarding topic areas, as related to certain learning...

... by exhausting the volume by thin slides, a method brought forward by Archimedes. In these approaches, mathematics served as a lens for looking at natural physical phenomena and vice versa, physical objects were described by mathematical elements. These reciprocal perspectives are characteristic of the relation...

... element was the belief that learning about the process of science in addition to science content would make studying science more attractive to students ( Belcher, 2018 ). The first edition of the PSSC high school textbook appeared in 1960. Other resources developed by the Committee included films...

... and hidden) and their three manifestation forms (written, taught and tested). He wrote a guide for teachers and administrators on how to deal with those six elements in developing, aligning and auditing a particular curriculum ( English, 2000 ). English saw the textbooks as “curriculum surrogates...

.../dx. Applications Using MOEMS/NOEMS Common applications of MOEMS/NOEMS are in the areas of communication, computing, industrial, and medical sensing, actuation and quantum information. These applications use implementations of MOEM/NOEM sensors, optical signal processing elements (including filters...

... the rich physics behind such properties but also to use that understanding to tailor materials for specific applications. Functional materials are those that show native properties that will suit a specific application, for example, optical and electronic properties for solar cells or magnetic properties...

...) vertical growth of CNT forest from Fe catalyst, (iii) infiltration of the CNT forest and subsequent release from the substrate, and (iv) mounting of the fabricated device between a clamp and a piezoelectric element. Optical deflection measurement is then carried out using laser reflection...

...) exerted on them ( Long, 1956 ). The fourth origin of the strain, which is primarily intrinsic in nature, is the phonon-induced lattice vibration. Optical phonons ought to give rise to “internal strain.” The interaction between optical phonons and electrons is strongly influenced by the perturbation...

... for the magnetostrictive element are expressed in terms of (i) magnetic parameters (such as applied magnetic field “H,” magnetic induction “B,” permeability at constant stress “μ^σ”), (ii) mechanical parameters (such as strain “ε,” stress “σ,” Young's modulus...

... by the introductory chapter, one of the important atomistic theories called the first principle based Kohn-Sham Density Functional Theory (KS-DFT) is discussed. Most importantly, the role of strain on the electronic structure, optical, magnetic, and electronic transport properties are discussed with illustrations...