Non-linear Optical Crystal Stabilizing Terahertz Output
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing non-linear optical crystals, such as those containing a salt of pyridinium and substituted phenylsulfonate, experience a significant decrease in terahertz wave output intensity near 1 THz, limiting their effectiveness in generating terahertz waves across a wide frequency range.
Innovation Solution
A non-linear optical crystal composed of pyridinium combined with two types of substituted phenylsulfonate crystals, specifically 4-substituted phenylsulfonate and 2,4,6-substituted phenylsulfonate, is developed to stabilize output intensity across a wide frequency range by adjusting the substituents and molar ratios, thereby suppressing local decreases in output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a single type of substituted phenylsulfonate is used in the non-linear optical crystal, then the crystal structure is simple and easy to manufacture, but the output intensity of terahertz waves is significantly lowered in particular frequency ranges (especially near 1 THz)
Solution Approach 1:
The patent combines multiple types of substituted phenylsulfonate compounds (specifically 4-substituted phenylsulfonate and 2,4,6-substituted phenylsulfonate) to form a composite non-linear optical crystal. This composite structure allows the crystal to maintain stable terahertz wave output intensity across a wide frequency range, particularly suppressing the local decrease near 1 THz that occurs in single-compound crystals, while still maintaining manufacturability through established crystal growth methods.
2Reliability
If multiple kinds of substituted phenylsulfonate are combined to broaden the frequency range, then the output intensity is improved in wide range, but the local decrease in output intensity may still occur in particular frequency ranges
Solution Approach 1:
The patent optimizes the compositional parameters by combining specific types of substituted phenylsulfonate compounds with controlled ratios. By carefully selecting the substitution patterns (4-substituted and 2,4,6-substituted) and their proportions, the crystal achieves stable output across a broad frequency range while minimizing local decreases through parameter optimization rather than simply adding more compound types.
3Productivity
If pyridinium and substituted phenylsulfonate are combined to form non-linear optical crystal, then terahertz waves can be generated, but the output intensity is locally lowered near 1 THz frequency
Solution Approach 1:
The patent addresses the local intensity decrease near 1 THz by introducing specific substitution patterns at different positions on the phenylsulfonate molecule. The 4-substituted and 2,4,6-substituted phenylsulfonate compounds provide different local electronic and structural characteristics that compensate for the frequency-dependent intensity loss, particularly around the 1 THz region, while maintaining overall terahertz generation capability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The crystal effectively maintains stable terahertz wave output intensity across a wide range, particularly near 1 THz, enhancing the performance of terahertz-wave generators and detectors.
Implementation Method 1
Applying organic crystals having non-linear optical effects as terahertz-wave generating elements or terahertz-wave detecting elements has been studied.
Data Source
AI summary
Disclosed is a non-linear optical crystal containing pyridinium represented by the following Formula (1), 4-substituted phenylsulfonate represented by the following Formula (2a), and 2,4,6-substituted phenylsulfonate represented by the following Formula (2b).