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Published on: March 22, 2019
Coherent broadband pulse shaping in the mid infrared
Optics Letters
|November 28, 2007
Summary
Researchers demonstrate broadband infrared pulse shaping using visible light pulses in GaAs. This method allows precise control over the infrared light
Area of Science:
- Optics and Photonics
- Nonlinear Optics
- Materials Science
Background:
- Broadband infrared light generation is crucial for various spectroscopic applications.
- Existing methods for controlling infrared pulse properties can be complex or limited in bandwidth.
Purpose of the Study:
- To demonstrate a novel method for broadband infrared pulse shaping.
- To achieve direct control over the temporal profile of generated infrared pulses.
Main Methods:
- Utilizing difference-frequency mixing (DFM) in Gallium Arsenide (GaAs).
- Employing two visible phase-locked, linearly chirped pulses as the excitation source.
- Tailoring the intensity profile of the visible pulses to control the output infrared field.
Main Results:
- Successfully generated broadband infrared pulses.
- Demonstrated precise control over the temporal shape of the emitted infrared field by manipulating the visible excitation pulses.
- Experimental results showed excellent agreement with theoretical simulations without adjustable parameters.
Conclusions:
- Difference-frequency mixing in GaAs offers a viable route for broadband infrared pulse shaping.
- Direct tailoring of visible excitation pulses provides effective control over the generated infrared light's temporal characteristics.
- This technique shows promise for applications requiring tailored broadband infrared light sources.
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