Functionalized Fiber End Superstructure Fiber Bragg Grating Refractive Index Sensor for Heavy Metal Ion Detection
We present a novel superstructure fiber Bragg grating fiber end sensor capable of detecting variations in refractive index (RI) of liquids and potentially that of gases, and demonstrated an application in the detection of heavy metal ions in water. The sensor is capable of sensing RI variations in t...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2018-06-01
|
| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/18/6/1821 |
| _version_ | 1811302169665601536 |
|---|---|
| author | Rex Xiao Tan Stephanie Hui Kit Yap Yung Chuen Tan Swee Chuan Tjin Morten Ibsen Ken Tye Yong Wenn Jing Lai |
| author_facet | Rex Xiao Tan Stephanie Hui Kit Yap Yung Chuen Tan Swee Chuan Tjin Morten Ibsen Ken Tye Yong Wenn Jing Lai |
| author_sort | Rex Xiao Tan |
| collection | DOAJ |
| description | We present a novel superstructure fiber Bragg grating fiber end sensor capable of detecting variations in refractive index (RI) of liquids and potentially that of gases, and demonstrated an application in the detection of heavy metal ions in water. The sensor is capable of sensing RI variations in the range of 1.333 to 1.470 with good sensitivity of up to 230 dB/RIU achieved for the RI range of 1.370 to 1.390. The sensor is capable of simultaneously measuring variations in ambient temperature along with RI. A simple chemical coating was employed as a chelating agent for heavy metal ion detection at the fiber end to demonstrate an possible application of the sensor. The coated fiber sensor can conclusively detect the presence of heavy metal ions with concentrations upwards of 100 ppm. RI sensing capability of the sensor is neither affected by temperature nor strain and is both robust and easily reproducible. |
| first_indexed | 2024-04-13T07:23:16Z |
| format | Article |
| id | doaj.art-28d8344fbfe44b9ca8875966447dd460 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-13T07:23:16Z |
| publishDate | 2018-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-28d8344fbfe44b9ca8875966447dd4602022-12-22T02:56:33ZengMDPI AGSensors1424-82202018-06-01186182110.3390/s18061821s18061821Functionalized Fiber End Superstructure Fiber Bragg Grating Refractive Index Sensor for Heavy Metal Ion DetectionRex Xiao Tan0Stephanie Hui Kit Yap1Yung Chuen Tan2Swee Chuan Tjin3Morten Ibsen4Ken Tye Yong5Wenn Jing Lai6School of EEE, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, SingaporeSchool of EEE, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, SingaporeTemasek Laboratories@NTU, 50 Nanyang Avenue, Research Techno Plaza, Singapore 637553, SingaporeSchool of EEE, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, SingaporeOptoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ, UKSchool of EEE, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, SingaporeTemasek Laboratories@NTU, 50 Nanyang Avenue, Research Techno Plaza, Singapore 637553, SingaporeWe present a novel superstructure fiber Bragg grating fiber end sensor capable of detecting variations in refractive index (RI) of liquids and potentially that of gases, and demonstrated an application in the detection of heavy metal ions in water. The sensor is capable of sensing RI variations in the range of 1.333 to 1.470 with good sensitivity of up to 230 dB/RIU achieved for the RI range of 1.370 to 1.390. The sensor is capable of simultaneously measuring variations in ambient temperature along with RI. A simple chemical coating was employed as a chelating agent for heavy metal ion detection at the fiber end to demonstrate an possible application of the sensor. The coated fiber sensor can conclusively detect the presence of heavy metal ions with concentrations upwards of 100 ppm. RI sensing capability of the sensor is neither affected by temperature nor strain and is both robust and easily reproducible.http://www.mdpi.com/1424-8220/18/6/1821fiber sensorsfiber Bragg gratingschemosensors |
| spellingShingle | Rex Xiao Tan Stephanie Hui Kit Yap Yung Chuen Tan Swee Chuan Tjin Morten Ibsen Ken Tye Yong Wenn Jing Lai Functionalized Fiber End Superstructure Fiber Bragg Grating Refractive Index Sensor for Heavy Metal Ion Detection Sensors fiber sensors fiber Bragg gratings chemosensors |
| title | Functionalized Fiber End Superstructure Fiber Bragg Grating Refractive Index Sensor for Heavy Metal Ion Detection |
| title_full | Functionalized Fiber End Superstructure Fiber Bragg Grating Refractive Index Sensor for Heavy Metal Ion Detection |
| title_fullStr | Functionalized Fiber End Superstructure Fiber Bragg Grating Refractive Index Sensor for Heavy Metal Ion Detection |
| title_full_unstemmed | Functionalized Fiber End Superstructure Fiber Bragg Grating Refractive Index Sensor for Heavy Metal Ion Detection |
| title_short | Functionalized Fiber End Superstructure Fiber Bragg Grating Refractive Index Sensor for Heavy Metal Ion Detection |
| title_sort | functionalized fiber end superstructure fiber bragg grating refractive index sensor for heavy metal ion detection |
| topic | fiber sensors fiber Bragg gratings chemosensors |
| url | http://www.mdpi.com/1424-8220/18/6/1821 |
| work_keys_str_mv | AT rexxiaotan functionalizedfiberendsuperstructurefiberbragggratingrefractiveindexsensorforheavymetaliondetection AT stephaniehuikityap functionalizedfiberendsuperstructurefiberbragggratingrefractiveindexsensorforheavymetaliondetection AT yungchuentan functionalizedfiberendsuperstructurefiberbragggratingrefractiveindexsensorforheavymetaliondetection AT sweechuantjin functionalizedfiberendsuperstructurefiberbragggratingrefractiveindexsensorforheavymetaliondetection AT mortenibsen functionalizedfiberendsuperstructurefiberbragggratingrefractiveindexsensorforheavymetaliondetection AT kentyeyong functionalizedfiberendsuperstructurefiberbragggratingrefractiveindexsensorforheavymetaliondetection AT wennjinglai functionalizedfiberendsuperstructurefiberbragggratingrefractiveindexsensorforheavymetaliondetection |