| ชื่อเรื่อง | : | Dual wavelength digital holography for improving the measurement accuracy |
| นักวิจัย | : | Di, Jianglei , Qu, Weijuan , Wu, Bingjing , Chen, Xin , Zhao, Jianlin , Asundi, Anand Krishna |
| คำค้น | : | - |
| หน่วยงาน | : | Nanyang Technological University, Singapore |
| ผู้ร่วมงาน | : | - |
| ปีพิมพ์ | : | 2556 |
| อ้างอิง | : | Di, J., Qu, W., Wu, B., Chen, X., Zhao, J., & Asundi, A. K. (2013). Dual wavelength digital holography for improving the measurement accuracy. Proceeding of SPIE 8769, International Conference on Optics in Precision Engineering and Nanotechnology (icOPEN2013), 87690G. , http://hdl.handle.net/10220/13364 , http://dx.doi.org/10.1117/12.2020394 |
| ที่มา | : | - |
| ความเชี่ยวชาญ | : | - |
| ความสัมพันธ์ | : | - |
| ขอบเขตของเนื้อหา | : | - |
| บทคัดย่อ/คำอธิบาย | : | In dual wavelength digital holography, a synthetic wavelength is obtained by using two lasers with different wavelengths to expand the measurement range of samples’ step heights from nanometers to micrometers. However, its measurement accuracy reduces along with the expansion of measuring range and significant noise is introduced at the same time. For cases where the sample’s height is smaller than the wavelength of illumination light, the measurement accuracy is very important. In this paper, a new approach of dual wavelength digital holography is presented. The synthetic wavelength is smaller than the wavelength of the two different lasers. Higher measurement accuracy can thus be achieved. The analysis and experimental results show the validity of this method. |
| บรรณานุกรม | : |
Di, Jianglei , Qu, Weijuan , Wu, Bingjing , Chen, Xin , Zhao, Jianlin , Asundi, Anand Krishna . (2556). Dual wavelength digital holography for improving the measurement accuracy.
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Di, Jianglei , Qu, Weijuan , Wu, Bingjing , Chen, Xin , Zhao, Jianlin , Asundi, Anand Krishna . 2556. "Dual wavelength digital holography for improving the measurement accuracy".
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Di, Jianglei , Qu, Weijuan , Wu, Bingjing , Chen, Xin , Zhao, Jianlin , Asundi, Anand Krishna . "Dual wavelength digital holography for improving the measurement accuracy."
กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2556. Print. Di, Jianglei , Qu, Weijuan , Wu, Bingjing , Chen, Xin , Zhao, Jianlin , Asundi, Anand Krishna . Dual wavelength digital holography for improving the measurement accuracy. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2556.
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