Journal: Sensors (Basel, Switzerland)

Article Title: LSPR and Interferometric Sensor Modalities Combined Using a Double-Clad Optical Fiber

doi: 10.3390/s18010187

Figure Lengend Snippet: Illustration of the double-clad optical fiber combining interferometric and plasmonic sensor modalities with n core = 1.46208 , n 1 st cladding = 1.45713 , and n 2 nd cladding = 1.44344 . Light in the range of 1500–1600 nm ( λ I ) is confined as single transverse mode both in the fiber and in the hydrogel volume, with reflection at the OF–hydrogel interface and hydrogel–solution interface illustrated with red color. Multi-mode with light in the range of 450–850 nm ( λ II ) is guided in the first cladding with numerical aperture illustrated with green on fiber-end face. The FP interference is measured with λ I , while the LSPR signal from gold nanorods (GNR) is measured with λ II .

Article Snippet: The FO-sensor setup illustrated in consist of the following components; λ II broadband source (MBB1F1, 470–850 nm, Thorlabs, Newton, NJ, USA), λ I broadband source (S5FC1005S, 1550 nm, 50 nm bandwidth, Thorlabs), 50:50 coupler MM (50/50, FCMH2-FC, 400–1600 nm, Thorlabs), 50:50 coupler SM (50/50, 84075633, 1550 nm, Bredengen, Oslo, Norway), double-clad optical fiber (DCOF) coupler (DC1300LEB, MM 400–1700 nm, SM 1250–1550 nm, Thorlabs), λ II spectrometer (QE65Pro, Ocean Optics, Dunedin, FL, USA), λ I spectrometer (NIRQuest-512-1.7, Ocean Optics), loose fiber-end terminated with index-matching gel (G608N3, Thorlabs), LSPR and FP sensor segment with Ø125 µm DCOF (DCF13, Thorlabs).

Techniques:

Journal: Sensors (Basel, Switzerland)

Article Title: LSPR and Interferometric Sensor Modalities Combined Using a Double-Clad Optical Fiber

doi: 10.3390/s18010187

Figure Lengend Snippet: ( a ) Reflectance in the λ I range from the hydrogel with GNRs in pH of 4.5; ( b ) autocorrelation function of the interferometric spectrum.

Article Snippet: The FO-sensor setup illustrated in consist of the following components; λ II broadband source (MBB1F1, 470–850 nm, Thorlabs, Newton, NJ, USA), λ I broadband source (S5FC1005S, 1550 nm, 50 nm bandwidth, Thorlabs), 50:50 coupler MM (50/50, FCMH2-FC, 400–1600 nm, Thorlabs), 50:50 coupler SM (50/50, 84075633, 1550 nm, Bredengen, Oslo, Norway), double-clad optical fiber (DCOF) coupler (DC1300LEB, MM 400–1700 nm, SM 1250–1550 nm, Thorlabs), λ II spectrometer (QE65Pro, Ocean Optics, Dunedin, FL, USA), λ I spectrometer (NIRQuest-512-1.7, Ocean Optics), loose fiber-end terminated with index-matching gel (G608N3, Thorlabs), LSPR and FP sensor segment with Ø125 µm DCOF (DCF13, Thorlabs).

Techniques:

Journal: Sensors (Basel, Switzerland)

Article Title: LSPR and Interferometric Sensor Modalities Combined Using a Double-Clad Optical Fiber

doi: 10.3390/s18010187

Figure Lengend Snippet: Summary of results for interferometric sensor in the λ I range.

Article Snippet: The FO-sensor setup illustrated in consist of the following components; λ II broadband source (MBB1F1, 470–850 nm, Thorlabs, Newton, NJ, USA), λ I broadband source (S5FC1005S, 1550 nm, 50 nm bandwidth, Thorlabs), 50:50 coupler MM (50/50, FCMH2-FC, 400–1600 nm, Thorlabs), 50:50 coupler SM (50/50, 84075633, 1550 nm, Bredengen, Oslo, Norway), double-clad optical fiber (DCOF) coupler (DC1300LEB, MM 400–1700 nm, SM 1250–1550 nm, Thorlabs), λ II spectrometer (QE65Pro, Ocean Optics, Dunedin, FL, USA), λ I spectrometer (NIRQuest-512-1.7, Ocean Optics), loose fiber-end terminated with index-matching gel (G608N3, Thorlabs), LSPR and FP sensor segment with Ø125 µm DCOF (DCF13, Thorlabs).

Techniques: