PPT-Monochromatic plane waves

LL2 section 48 Plane waves are monochromatic when f A E and H depends on time according to cos w t a w cyclic frequency This differential equation gives the spatial distribution of the plane wave. When the object is a grating with a single frequency at the coherent cutoff the 1and 1 orders are just barely accepted by the aperture of the imaging system These three beams then produce a fringe pattern at the cutofffrequency Ifthe grating frequen color is made up of three parts. hue. A true color. Hue is somewhat synonymous to what we usually refer to as "colors". Red, green, blue, yellow, and orange. color is made up of three parts. value. The measurement of the brightness of a color. . Mandala . is the Sanskrit word for circle. In religious art, the mandala is used to symbolize . the universe. However. , the pattern of a mandala -- a circle with a . center- is found many places. For example, the . “The most incomprehensible thing about the world is that it is comprehensible.”. – . Albert Einstein. Day. 18, 3/31:. . Questions? . Electron Diffraction. Wave packets and uncertainty. Next Week:. Fresnel equations. Chapter 23: . Fresnel equations. Recall basic laws of optics. Law of reflection:. q. i. normal. n. 1. n. 2. q. r. q. t. Law of refraction. “Snell’s Law”:. Easy to derive on the basis of:. Outline. Review of the Quasi-static Approximation. Electric and Magnetic Components of Waves. The Wave Equation (in 1-D). Uniform Plane Waves. Phase Velocity and Intrinsic Impedance. Wave-vector and Wave-frequency. . Outline. Review: Reflection & Refraction. Superposition of Plane Waves. - . Wavepackets. . Δ. k . –. . Δ. x . Relations. Sample Midterm 2. (one of these would be Student X’s Problem). Demonstration: Generating Plane EM Waves You can generate EM waves in an analogous way (to the string) by shaking the field lines(strings) attached to charges. Concept Q.: Generating Plane Waves W Comsol. Example: Propagation of Plane Waves in Layered Media. Periodic Boundary condition. BCs that are used to model a large system by simulating a small part that is far away from the edges.. Ex1. Diffusion of particles in a large container. Section 83. Monochromatic plane wave in a medium. Maxwell equations. Other two Maxwell equations follow. div . D. = 0. Assume a homogeneous . medium. Eliminate . H. Eliminate . E . instead . Review of the Quasi-static Approximation. Electric and Magnetic Components of Waves. The Wave Equation (in 1-D). Uniform Plane Waves. Phase Velocity and Intrinsic Impedance. Wave-vector and Wave-frequency. Imrana . Ashraf. . Zahid. Quaid-i-Azam. University Islamabad Pakistan. Preparatory School to Winter College on Optics: . 8. th. January-12. rd. February 2016. ELECTROMAGNETIC WAVES IN VACUUM. THE WAVE . inteferometer. . . Apparatus. :- . Spectrometer , monochromatic light, ultrasonic transducer, Rectangular cup containing test liquid. . .. . .. .. . Theory:-. . Ultrasonic interferometer is a simple device which yields accurate and consistent data, from which one can determine the velocity of ultrasonic sound in a liquid medium. . Dr. George Kaviris. Assistant professor. . of seismology – seismic anisotropy. section of geophysics and . geothermics. department of geology and Geoenvironment. national and Kapodistrian university of .