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Quantification of Lipid Abundance and Evaluation of Lipid Distribution in Caenorhabditis elegans by Nile Red and Oil Red O Staining
Published on: March 5, 2018
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Grating-tuned dual-wavelength Nile red dye laser
Applied Optics
|June 29, 2019
Summary
This study demonstrates dual-wavelength dye laser operation using two configurations, achieving tunable terahertz output. These lasers show potential for terahertz source generation via difference frequency technology.
Area of Science:
- Optics and Photonics
- Laser Physics
Background:
- Grating-tuned dye lasers are versatile light sources.
- Achieving dual-wavelength output is crucial for advanced applications like terahertz generation.
Purpose of the Study:
- To demonstrate dual-wavelength operation in grating-tuned dye lasers.
- To investigate tuning characteristics and wavelength separation in Littrow and Littman-Metcalf configurations.
- To analyze the theoretical basis for dual-wavelength tuning and separation.
Main Methods:
- Utilized a Q-switched Nd:YAG laser's second harmonic generation for pumping Nile red dye.
- Employed both Littrow and Littman-Metcalf configurations for dye laser operation.
- Investigated tuning by rotating optical elements and achieved wavelength separation by parallel movement.
Main Results:
- Achieved 72 nm and 46 nm tuning ranges in Littrow and Littman-Metcalf configurations, respectively.
- Demonstrated dual-wavelength separation from 0.7-5 nm (Littrow) and 1.5-4 nm (Littman-Metcalf).
- Wavelength separation achieved falls within the terahertz range.
Conclusions:
- Dual-wavelength operation in dye lasers is feasible using grating tuning.
- The demonstrated wavelength separation is suitable for terahertz source development using difference frequency generation.
- Theoretical analysis provides insight into the mechanisms of dual-wavelength tuning and separation.
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