Journal
OPTICS EXPRESS
Volume 26, Issue 19, Pages 24843-24853Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.26.024843
Keywords
-
Categories
Funding
- National Key R&D Program of China [2017YFC1405600]
- Natural Science Foundation of Shandong Province [ZR2017MD030]
Ask authors/readers for more resources
In this paper, an ultrahigh sensitivity sensing in aqueous solution for microfiber modal interferometer (MMI) is realized. The group refractive index (RI) difference between HE11 and HE12 mode will come down to 0 at a certain wavelength, resulting in ultrahigh sensitivity near this wavelength. MMI with different diameters have their individual ultrasensitive wavelength band, which indicates the broad range of optional probing wavelength and more liberal diameter condition on fiber fabrication. In the experimentation, infrared absorption band in water around 1360-1600nm is easy to keep away by adjusting the microfiber diameter. As a result, an ultrahigh sensitivity of 14.95 pm/ppm is realized for sodium nitrate at 1320nm, whose equivalent sensitivity is about 1.26 x 10(5)-nm/RIU for RI, which is much higher than most of the existing naked sensors with magnitude of 10(2)-10(4)mn/RIU. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available