Synchronously Pumped Optical Parametric Oscillators in the Mid-infrared and Their Use in Semiconductor Characterisation PDF Download
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Author: P. Jonathan Phillips
Publisher:
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Category :
Languages : en
Pages : 0
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Author: P. Jonathan Phillips
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Languages : en
Pages : 0
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Author: R. Steven Kurti
Publisher:
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Category :
Languages : en
Pages : 131
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Author: Nathalie Nagl
Publisher: Springer Nature
ISBN: 3030897540
Category : Science
Languages : en
Pages : 155
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This thesis presents the first successful realization of a compact, low-noise, and few-cycle light source in the mid-infrared wavelength region. By developing the technology of pumping femtosecond chromium-doped II-VI laser oscillators directly with the emission of broad-stripe single-emitter laser diodes, coherent light was generated with exceptionally low amplitude noise — crucial for numerous applications including spectroscopy at high sensitivities. Other key parameters of the oscillator's output, such as pulse duration and output power, matched and even surpassed previous state-of-the-art systems. As a demonstration of its unique capabilities, the oscillator's powerful output was used to drive — without further amplification — the nonlinear generation of coherent mid-infrared light spanning multiple octaves. The resulting table-top system uniquely combines high brilliance and ultrabroad spectral bandwidth in the important mid-infrared spectral range. The rapid development of this technology is comprehensively and lucidly documented in this PhD thesis. Together with a thorough review of literature and applications, and an extensive analysis of the theoretical foundations behind ultrafast laser oscillators, the thesis will serve as a valuable reference for the construction of a new generation of mid-infrared light sources.
Author: Michael Edward Dearborn
Publisher:
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Category : Infrared sources
Languages : en
Pages : 290
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Author: Eric Chiu Tat Cheung
Publisher:
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Category :
Languages : en
Pages : 338
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Author: N. Amiune
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Category :
Languages : en
Pages : 0
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Abstract: Optical parametric oscillators (OPOs) constitute an important coherent, narrow-linewidth and widely tunable light source with applications in spectroscopy and many other fields. Their realizations based on whispering gallery resonators (WGRs) provide a small footprint and ultra-low thresholds, with demonstrations of tunability typically done via temperature variation. In this work, we show the pump tuning capabilities of a mm-sized WGR mid-infrared OPO made of CdSiP2. By tuning a telecom wavelength diode laser by 16 nm, we generate tunable light from 2708 to 3575 nm. Furthermore, we show controlled tuning in steps of 1 free spectral range (FSR) and the possibility of 12 GHz of continuous tuning. All these features are in good agreement with the theoretical predictions. We conclude that tuning from 2.4 to 4.9 μm is even possible, while still using commercially available near-infrared diode lasers. This work highlights the advantages of pump tuning of WGR OPOs and provides valuable insights for their precise control
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Category :
Languages : en
Pages :
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Author: Magnus Lindblom
Publisher:
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Category :
Languages : en
Pages : 43
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Author: Leigh John Bromley
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Category :
Languages : en
Pages :
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Author: Matthew John McCarthy
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Category :
Languages : en
Pages :
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