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Astrophysical Lasers

Vladilen Letokhov and Sveneric Johansson

Published in print:
2008
Published Online:
May 2009
ISBN:
9780199548279
eISBN:
9780191720512
Item type:
book
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199548279.001.0001
Subject:
Physics, Atomic, Laser, and Optical Physics

Progress in modern radio astronomy led to the discovery of space masers in the microwave range, and it became a powerful tool for studies of interstellar star-forming molecular clouds. Progress in ... More


DIRECT DETERMINATION OF THE EFFECTIVE MASS OF IONS

A.F. Borghesani

in Ions and electrons in liquid helium

Published in print:
2007
Published Online:
January 2008
ISBN:
9780199213603
eISBN:
9780191707421
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199213603.003.0014
Subject:
Physics, Condensed Matter Physics / Materials

A very important property of the complex charge structures used to test superfluidity is effective mass. This can be measured directly in experiments with microwaves or in experiments based on ... More


Novel and Exotic Insertion Devices

James A. Clarke

in The Science and Technology of Undulators and Wigglers

Published in print:
2004
Published Online:
September 2007
ISBN:
9780198508557
eISBN:
9780191708770
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198508557.003.0012
Subject:
Physics, Particle Physics / Astrophysics / Cosmology

This chapter examines some novel undulator concepts which have been developed to enhance particular properties of the insertion device. Quasiperiodic, figure-8, staggered array, revolver, and ... More


Photons

Stephen J. Blundell and Katherine M. Blundell

in Concepts in Thermal Physics

Published in print:
2009
Published Online:
February 2010
ISBN:
9780199562091
eISBN:
9780191718236
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199562091.003.0023
Subject:
Physics, Particle Physics / Astrophysics / Cosmology

This chapter considers the thermodynamics of electromagnetic radiation. It begins by discussing spectral energy density, Kirchoff's law, radiation pressure, and the statistical mechanics of the ... More


The expanding universe and thermal relics

Ta-Pei Cheng

in Relativity, Gravitation and Cosmology: A Basic Introduction

Published in print:
2009
Published Online:
February 2010
ISBN:
9780199573639
eISBN:
9780191722448
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199573639.003.0010
Subject:
Physics, Particle Physics / Astrophysics / Cosmology

The dynamics of a changing universe are determined by Friedmann equations, which have simple quasi-Newtonian interpretations. The universe began hot and dense (the big bang), and thereafter expanded ... More


Exploring the Universe With a Microscope

Gian Francesco Giudice

in A Zeptospace Odyssey: A Journey into the Physics of the LHC

Published in print:
2009
Published Online:
February 2010
ISBN:
9780199581917
eISBN:
9780191723001
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199581917.003.0012
Subject:
Physics, Particle Physics / Astrophysics / Cosmology

Results from the LHC can expand our knowledge of the early stages of the universe. The connection between the world of particle physics and the structure of our universe is probably one of the most ... More


The compound challenge

John Orton

in The Story of Semiconductors

Published in print:
2008
Published Online:
January 2010
ISBN:
9780199559107
eISBN:
9780191712975
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199559107.003.0005
Subject:
Physics, Crystallography

This chapter introduces the advent of compound semiconductors. III-V materials such as GaAs and InP found applications in semiconductor electronics during the 1960s, where silicon's electronic ... More


The Hot Big Bang

HELGE S. KRAGH

in Conceptions of Cosmos: From Myths to the Accelerating Universe: A History of Cosmology

Published in print:
2006
Published Online:
January 2010
ISBN:
9780199209163
eISBN:
9780191706219
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199209163.003.0005
Subject:
Physics, Particle Physics / Astrophysics / Cosmology

This chapter focuses on the emergence and development of the Big Bang theory of the universe, from the mid 1940s to the late 1970s. George Gamow, a main figure in this development, developed an early ... More


Cosmology

Carlo Giunti and Chung W. Kim

in Fundamentals of Neutrino Physics and Astrophysics

Published in print:
2007
Published Online:
January 2010
ISBN:
9780198508717
eISBN:
9780191708862
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198508717.003.0016
Subject:
Physics, Particle Physics / Astrophysics / Cosmology

This chapter introduces the standard cosmological model and explains basic general relativity, Robertson–Walker metric (geodesic motion, redshift, Hubble's law, angular diameter-redshift relation, ... More


Physical Properties of Silver Halides

Tadaaki Tani

in Photographic Science: Advances in Nanoparticles, J-Aggregates, Dye Sensitization, and Organic Devices

Published in print:
2011
Published Online:
January 2012
ISBN:
9780199572953
eISBN:
9780191731266
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199572953.003.0003
Subject:
Physics, Atomic, Laser, and Optical Physics

The light absorption in relation to band structure, dark conductivity with ionic carriers, and photoconductivity with electronic carriers of AgX are described, being focused on the differences ... More


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