Coherence Properties of Picosecond Pulses from Semiconductor Lasers PDF Download
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Author: Per Andersson
Publisher:
ISBN:
Category :
Languages : en
Pages : 24
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Book Description
Author: Per Andersson
Publisher:
ISBN:
Category :
Languages : en
Pages : 24
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Book Description
Author: Per Andersson
Publisher:
ISBN: 9789170322037
Category :
Languages : en
Pages : 46
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Book Description
Author: Per Andersson
Publisher:
ISBN:
Category :
Languages : en
Pages : 38
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Book Description
Author: Per Andersson
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Per Andersson
Publisher:
ISBN:
Category :
Languages : en
Pages : 32
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Book Description
Author: Sina Riecke
Publisher: Cuvillier Verlag
ISBN: 3736936524
Category : Science
Languages : en
Pages : 136
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Book Description
Picosecond laser pulses find diverse applications for example in material processing as well as in analysis and sensing. Fluorescence lifetime spectroscopy in particular requires pulses with variable repetition rate and moderate pulse energy. While suitable pulses in the red and blue spectral range can be provided by gain-switched laser diodes, the generation of green laser pulses requires a more elaborate setup based on second harmonic generation. The starting point is a gain-switched infrared distributed-feedback laser diode. The optimization of the laser design and the operating conditions allows to generate spectrally narrow picosecond pulses with a peak power above 1 W. Different gain media are compared for further amplification of these pulses, and options for the miniaturization of the master-oscillator power-amplifier system are explored. The resulting intense infrared pulses are then used for second harmonic generation of green picoseconds pulses. Their peak power of above 5 W exceeds all previous green pulse sources with variable repetition rate. In terms of pulse energy and background suppression, the reported green pulses are thus ideally suited for fluorescence lifetime spectroscopy
Author: Edeltraud Gehrig
Publisher: Springer Science & Business Media
ISBN: 9783540007418
Category : Technology & Engineering
Languages : en
Pages : 252
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Book Description
Presents fundamental theories and simulations of the spatio-temporal dynamics and quantum fluctuations in semiconductor lasers. The dynamic interplay of light and matter is theoretically described by taking into account microscopic carrier dynamics, spatially dependent light-field propagation and the influence of spontaneous emission and noise.
Author: J. P. Curtis
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: F. J. Duarte
Publisher: BoD – Books on Demand
ISBN: 9533072423
Category : Technology & Engineering
Languages : en
Pages : 702
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Book Description
In this volume, recent contributions on coherence provide a useful perspective on the diversity of various coherent sources of emission and coherent related phenomena of current interest. These papers provide a preamble for a larger collection of contributions on ultrashort pulse laser generation and ultrashort pulse laser phenomena. Papers on ultrashort pulse phenomena include works on few cycle pulses, high-power generation, propagation in various media, to various applications of current interest. Undoubtedly, Coherence and Ultrashort Pulse Emission offers a rich and practical perspective on this rapidly evolving field.
Author: L.D. Laude
Publisher: Springer Science & Business Media
ISBN: 9400968906
Category : Technology & Engineering
Languages : en
Pages : 631
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Book Description
The impact of Materials Science in our environment has probably never been as massive and decisive as it is today. In every aspect of our lives, progress has never been so dependent on the techniques involved in producing ever more sophisticated materials in ever larger quantities, nor so demanding for technologists to imagine novel processes and circumvent difficulties, or take up new challenges. Every technique is based on a physical process which is put into practice and optimized. The better we know that process, the better the optimization, and more powerful the technique. Laser processing of materials is inscribed in that context. As soon as powerful coherent light sources were made available, it was realized that such intense sources of energy could be used to "heat, melt and crystallize" materials, i.e., to promote phase transitions in atomic systems. As early as 1964, attempts in that direction were made but received very little (if any) attention. Reasons for this lack of interest were several. For one thing, laser technology was not fully developed, so that the process offered poor reliability and no versatility. Also, improving the existing techniques was believed to be sufficient to meet the needs of the time, and there was no real motivation to explore new ways. Finally, and more important, the fundamentals of the physics behind the scenes were, and continue to be, way out of the runni~g stream.
