Inorganic Chemistry Concepts

Lasers and Excited States of Rare Earths

Authors: Reisfeld, Renata, Jorgensen, Christian K.

Buy this book

eBook $69.95 net
( price for USA )
  • ISBN 978-3-642-66696-4
  • digitally watermarked, no DRM
  • included format: PDF
  • eBooks can be used on all Reading Devices
Softcover $99.00 net
( price for USA )
  • ISBN 978-3-642-66698-8
  • free shipping for individuals worldwide
  • usually dispatched within 3 to 5 business days
About this book

The possibility of stimulated light emission was discussed by Einstein in 1917, eight years before the quantum-mechanical description of energy levels of many-electron systems. Though it is imperative to use samples having optical properties greatly different from the stan­ dard continuous spectrum of opaque objects ("black body" radia­ tion) it is not always necessary to restrict the study to monatomic entities. Thus, spectral lines can be obtained (in absorption and in emission) from lanthanide compounds, containing from one to thir­ teen 4f electrons going from trivalent cerium to ytterbium, that are nearly as sharp as the ones from gaseous atoms. However, the presence of adjacent atoms modifies the simple picture of an isolated electron configuration, and in particular, it is possible to pump excited levels efficiently by energy transfer from species with intense absorption bands, such as the inter-shell transitions of other lanthanides and of thallium(I), lead(II) and bismuth(III) or the electron transfer bands of the uranyl ion or other complexes. On the other hand, it is possible to diminuish the mUlti-phonon relaxation (competing with sharp line luminescence) by selecting vitreous or crystalline materials with low phonon energies. Obviously, one cannot circumvent the conservation of energy by lasers, but they may have unprecedented consequences for the future by allowing nuclear fusion of light elements, effects of non-linear optics and time-resolved spectroscopy, besides the more conventional applications of coherent light beams with negligible angular extension.

Table of contents (1 chapter)

  • Energy Transfer

    Renata Reisfeld, Christian Klixbüll Jørgensen

    Pages 157-198

    Buy Chapter $29.95
Free Preview

Buy this book

eBook $69.95 net
( price for USA )
  • ISBN 978-3-642-66696-4
  • digitally watermarked, no DRM
  • included format: PDF
  • eBooks can be used on all Reading Devices
Softcover $99.00 net
( price for USA )
  • ISBN 978-3-642-66698-8
  • free shipping for individuals worldwide
  • usually dispatched within 3 to 5 business days

Recommended for you

Loading...

Bibliographic Information

Bibliographic Information
Book Title
Lasers and Excited States of Rare Earths
Series Title
Inorganic Chemistry Concepts
Series Volume
1
Copyright
1977
Publisher
Springer-Verlag Berlin Heidelberg
Copyright Holder
Springer-Verlag Berlin Heidelberg
eBook ISBN
978-3-642-66696-4
DOI
10.1007/978-3-642-66696-4
Softcover ISBN
978-3-642-66698-8
Series ISSN
0172-7966
Edition Number
1
Topics