Chinese Optics Letters, Volume. 16, Issue 1, 012301(2018)
Simple Raman scattering sensor integrated with a metallic planar optical waveguide: effective modulation via minor structural adjustment
Fig. 2. (Color online) ATR spectra of TE and TM polarization of an MCOW chip. The wavelength is 785 nm, and the dielectric constant of silver, PMMA, and glass is taken as
Fig. 3. Electric field distribution of a single mode in different thicknesses of PMMA films. (a) 0.5, (b) 0.8, (c) 1.0, (d) 1.3, and (e) 1.5 μm.
Fig. 4. (a) Experimental setup for reflectivity detection; (b) the reflection spectra of the MCOW chip with 7 μm PMMA film.
Fig. 5. Raman spectra of CuPc obtained via MCOW with five different PMMA film thicknesses: 7, 11, 16, 19, and 23 μm, respectively.
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Yan Lu, Xuefen Kan, Tian Xu, Jinghuai Fang, Meng Wang, Cheng Yin, Xianfeng Chen, "Simple Raman scattering sensor integrated with a metallic planar optical waveguide: effective modulation via minor structural adjustment," Chin. Opt. Lett. 16, 012301 (2018)
Category: Optical devices
Received: Sep. 29, 2017
Accepted: Nov. 23, 2017
Published Online: Jul. 17, 2018
The Author Email: Tian Xu (xutian@ntu.edu.cn)