Ebook: Laser-Induced Dynamic Gratings
- Tags: Laser Technology Photonics, Quantum Optics, Optics Optoelectronics Plasmonics and Optical Devices
- Series: Springer Series in Optical Sciences 50
- Year: 1986
- Publisher: Springer-Verlag Berlin Heidelberg
- Edition: 1
- Language: English
- pdf
The invention ofthe laser 25years ago resulted in powerfullight sources which led to the observation of unexpected and striking phenomena. New fields of science such as holography and nonlinear optics developed constituting the basis of this volume. The classical principle of linear superposition of light wavesdoes not hold anymore. Two laser beams crossing in a suitable material may produce a set of new beams with different directions and frequencies. The interaction of light waves can be understood by considering the optical grating structures which develop in the overlap region. The optical properties of matter become spatially modulated in the interference region of two light waves. Permanent holographic gratings have been produced in this way by photographic processes for many years. In contrast, dynamic or transient gratings disappear after the inducing light source, usually a laser, has been switched off. The grating amplitude is controlled by the light intensity. Dynamic gratings have been induced in a large number ofsolids, liquids, and gases, and are detected by diffraction, 'forced light scattering' of a third probing beam, or by self-diffraction of the light waves inducing the grating. The combined interference and diffraction effect corresponds to four-wave mixing (FWM) in the language of nonlinear optics. The process is called degenerate ifthe frequenciesofthe three incident wavesand the scattered wave are equal. Degenerate four-wave mixing (DFWM) is a simple method to achieve phase conjugation, i.e. to generate a wave which propagates time reversed with respect to an incident wave.
Content:
Front Matter....Pages I-XI
Introduction....Pages 1-12
Production and Detection of Dynamic Gratings....Pages 13-37
Mechanisms of Grating Formation and Grating Materials....Pages 38-93
Diffraction and Four-Wave Mixing Theory....Pages 94-122
Investigation of Physical Phenomena by Forced Light Scattering....Pages 123-158
Real-Time Holography and Phase Conjugation....Pages 159-192
Gratings in Laser Devices and Experiments....Pages 193-222
Conclusion and Outlook....Pages 223-224
Back Matter....Pages 225-261
Content:
Front Matter....Pages I-XI
Introduction....Pages 1-12
Production and Detection of Dynamic Gratings....Pages 13-37
Mechanisms of Grating Formation and Grating Materials....Pages 38-93
Diffraction and Four-Wave Mixing Theory....Pages 94-122
Investigation of Physical Phenomena by Forced Light Scattering....Pages 123-158
Real-Time Holography and Phase Conjugation....Pages 159-192
Gratings in Laser Devices and Experiments....Pages 193-222
Conclusion and Outlook....Pages 223-224
Back Matter....Pages 225-261
....