Simultaneous Measurement of Humidity and Temperature with Cytop-reduced Graphene Oxide-overlaid Two-mode Optical Fiber Sensor
- Title
- Simultaneous Measurement of Humidity and Temperature with Cytop-reduced Graphene Oxide-overlaid Two-mode Optical Fiber Sensor
- Author
- 김재용
- Keywords
- Two-mode microfiber; Knot resonator; Response time; Recovery time; Relative humidity; Simultaneous measurement
- Issue Date
- 2019-11
- Publisher
- ELSEVIER SCIENCE SA
- Citation
- SENSORS AND ACTUATORS B-CHEMICAL, v. 298, article no. 126841
- Abstract
- A polymer-overlaid two-mode microfiber knot resonator (TMM-KR) was designed to measure relative humidity (RH) and temperature simultaneously in a living condition. The device is composed of two main optical features: two-mode microfiber (TMM, slow-varying term) and two-mode knot resonator (TM-KR, fast-varying term). After fabricating a TMM by non-adiabatically tapering a conventional single mode fiber (SMF), we designed C-rGO-overlaid TMM as a polymer-overlaid optical sensor to evaluate the response and recovery times. The effective group refractive index between fundamental and cladding modes, HE11 and HE12, respectively, of the TMM-KR reduced to nearly zero by optimizing the waist diameter of the optical microfiber, and the sensitivities of the proposed sensor remarkably enhanced to 0.603 nm/%, and -0.79 nm/degrees C, for RH and temperature, respectively. Our calculated and experimental results demonstrated that the proposed micro-structure of the C-rGO-overlaid TMM-KR will provide optical properties that can be applied for practical use of environment sensing.
- URI
- https://www.sciencedirect.com/science/article/pii/S0925400519310408?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/151949
- ISSN
- 0925-4005
- DOI
- 10.1016/j.snb.2019.126841
- Appears in Collections:
- COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
- Files in This Item:
There are no files associated with this item.
- Export
- RIS (EndNote)
- XLS (Excel)
- XML