Abstract
The application of photonic crystal negative refraction effect to the concentration detection of sugar solution was explored and a simulation experiment on light propagation in a photonic crystal was performed by Finite Difference Time Domain(FDTD) method. Simulation experiments show that the concentration change of sugar solution has a linear relationship with output power changes and the linear correlation degree is affected by medium column radius constant. The obtained multiple parameters were compared and optimized, and eventually the linearity relationship between the highest output power and the concentration of sugar solution was obtained. Based on this relation, a sugar solution concentration detection method based on photonic crystal negative refraction effect was proposed and a corresponding concentration detector was developed. Compared to other detection methods, the application of photonic crystals is characterized by a small size, long life, easy to integrate with the laser device and is not subject to external electromagnetic environment effects.
| Original language | English |
|---|---|
| Pages (from-to) | 877-883 |
| Number of pages | 7 |
| Journal | Guangxue Jingmi Gongcheng/Optics and Precision Engineering |
| Volume | 22 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Apr 2014 |
| Externally published | Yes |
Keywords
- Concentration detection
- Negative refraction effect
- Photonic crystal
- Photonic crystal detector
- Sugar solution