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Physics

Tailoring Artificial Dielectric Materials at Terahertz Frequencies.pdf

December 11, 2009 · Filed Under Physics · Comment  · Tags: ,

Taken from Abstract The Submillimeter Technology Laboratory(STL) at the University of Massachusetts Lowell has developed a methodology of tailoring the complex refractive index for artificial dielectrics at terahertz frequencies. A wide range of precisely controlled optical properties have been achieved for materials such as vinyl acetate, silicone, polyethylene and epoxy resin when combined with powdered loading agents such as boron nitride, silicon, graphite, iron oxide and stainless steel flake. Using this technology, STL has successfully fabricated both narrow-band and wide-band anechoic structures. The method of characterizing materials for the purpose of tailoring their dielectric properties at terahertz frequencies is presented along with several demonstrated applications.

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Cosmology for Particle Physicists.pdf

November 8, 2009 · Filed Under Physics · Comment  · Tags: , , , ,

Taken from Introduction: Over the past two decades Cosmology has increasingly become a precision science. That the Universe is expanding was an astonishing discovery. Now we know its details to unprecedented precision. An expanding Universe also implied an extremely compact state in the past, and therefore very high temperature. The Particle Physics forces which can now be explored only in accelerator laboratories were in free play in the remote past. Thus the observation of the oldest remnants in the Universe amounts to looking at the results of a Particle Physics experiment under natural conditions.

Lectures on Quantum Physics and Application.pdf

November 7, 2009 · Filed Under Physics · Comment  · Tags: , ,

Author: Paul E. Dimotakis, California Institute of Technology, this ebook is about Quantum Physics and Application contains great deal of physics theories such as: classical mechanics, wave mechanics, Schrodinger Equations etc.

Electricity and Magnetism.pdf

October 21, 2009 · Filed Under Physics · 1 Comment  · Tags: , , ,

Quite useful physics textbook for everyone, Electricity and Magnetism.pdf, written by Benjamin Crowell

The Thermodynamics of Phase Equilibrium.pdf

October 9, 2009 · Filed Under Physics · Comment  · Tags: ,

Taken from Introduction: This paper is the first in a series in which thermodynamics is developed beyond its usual scope from a new postulational basis. The postulational basis of classical thermodynamics is firmly established in tradition and a new departure calls for an explanation of the underlying ideas. It is widely believed that thermodynamics consists essentially of the implications of the first, second, and third law of thermodynamics. Actually, however, few if any significant results can be derived from these postulates without using a number of additional assumptions concerning the properties of material systems, such as the existence of homogeneous phases, validity of equations of state and the like.