Terahertz Detection Device Segmentation for Object Space
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Solution Overview
Problem
Existing transmission type detection devices for terahertz waves face challenges in downsizing while maintaining sensitivity and ensuring sufficient space for housing objects, as the small size required for efficient detection makes it difficult to install and react objects within the device.
Innovation Solution
A detection device with a terahertz wave generation element and a detection element connected by first and second transmission paths, surrounded by a sealing part that separates and communicates with the space between these paths, allowing for reduced distance and increased object mobility without increasing device size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the distance between transmission paths is reduced to downsize the device, then detection sensitivity is improved, but sufficient space for housing and reacting objects cannot be ensured
Solution Approach 1:
The device is segmented into distinct functional zones: a detection zone with closely spaced transmission paths for high-sensitivity terahertz detection, and a separate reaction zone within the sealed chamber for object placement and chemical reactions. This spatial segmentation allows each zone to be optimized independently - the detection zone for miniaturization and the reaction zone for sufficient object accommodation.
Solution Approach 2:
A sealed chamber acts as an intermediary structure that couples the closely spaced transmission paths while providing a controlled environment for object reactions. The chamber mediates between the conflicting requirements by containing both the compact detection elements and the space needed for object reactions, isolating them within a unified sealed volume.
2Measurement precision
If a large number of optical elements are provided between generation and detection sections, then detection accuracy is improved, but device size becomes large
Solution Approach 1:
Multiple optical functions (beam shaping, focusing, and detection) are merged into a single off-axis parabolic mirror system. The mirror simultaneously performs collimation of terahertz waves from the generation section and focusing of reflected waves onto the detection section, eliminating the need for separate optical elements and reducing overall device size while maintaining detection accuracy.
Solution Approach 2:
The off-axis parabolic mirror is designed with multi-functionality, serving both as a collimating element for the incident terahertz waves and as a focusing element for the reflected waves. This universal optical component replaces what would traditionally require multiple specialized elements, achieving compact device architecture without compromising measurement precision.
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 configuration enables high-sensitivity detection of terahertz waves passed through objects while providing sufficient space for object installation and reaction, achieving downsizing and improved detection capabilities.
Implementation Method 1
a terahertz wave generation element; a terahertz wave detection element
Implementation Method 2
a sealing part disposed between the terahertz wave generation element and the terahertz wave detection element to surround the first transmission path and the second transmission path
Implementation Method 3
the terahertz wave detection element disposed on the second substrate to detect the terahertz waves having passed through the object
Data Source
AI summary
A detection device having: a terahertz wave generation element; a terahertz wave detection element; a first transmission path arranged upon the terahertz wave generation element; a second transmission path arranged upon the terahertz wave detection element; and a sealed section arranged between the terahertz wave generation element and the terahertz wave detection element and separated from the first transmission path and the second transmission path, so as to surround the first transmission path and the second transmission path. A space between an emission surface in the first transmission path and an incident surface in the second transmission path is connected to a space between the first transmission path and the sealed section and to a space between the second transmission path and the sealed section.