Refractive index sensor for sensing high refractive index bioliquids at the THz frequency

Amit Kumar; Pankaj Verma; Poonam Jindal

doi:10.1364/JOSAB.438367

Journal of the Optical Society of America B
Vol. 38,
Issue 12,
pp. F81-F89
(2021)
•https://doi.org/10.1364/JOSAB.438367

Refractive index sensor for sensing high refractive index bioliquids at the THz frequency

Amit Kumar, Pankaj Verma, and Poonam Jindal

Not Accessible

Your library or personal account may give you access

Get PDF
Email
Share
Get Citation
Copy Citation Text
Amit Kumar, Pankaj Verma, and Poonam Jindal, "Refractive index sensor for sensing high refractive index bioliquids at the THz frequency," J. Opt. Soc. Am. B 38, F81-F89 (2021)

Export Citation
- BibTex
- Endnote (RIS)
- HTML
- Plain Text
Citation alert
Save article

Check for updates

Related Topics
Table of Contents Category
- Wave Guiding and Confinement
Optics & Photonics Topics
?

The topics in this list come from the Optics and Photonics Topics applied to this article.

About this Article
History
- Original Manuscript: July 20, 2021
- Revised Manuscript: October 1, 2021
- Manuscript Accepted: October 5, 2021
- Published: October 22, 2021
Virtual Issues
JOSA B Feature Issue: Specialty Optical Fiber Modeling, Fabrication, and Characterization (2021)

Abstract

In this paper, a highly sensitive and low loss refractive index (RI) biosensor for high RI bio-analytes detection, such as for cholesterol, nicotine, and bacillus bacteria, is proposed. A novel, to the best of our knowledge, decagonal structure with porous core photonic crystal fiber (PC-PCF) is introduced. The porous core consists of a rectangular sensing hole. The analytes to be sensed are considered in liquid form and infiltrated into the sensing holes, which makes the sensing process simpler and more straightforward. Cladding of the PC-PCF consists of multilayer circular air holes arranged in a decagonal pattern. For durability and stability of the sensor, TOPAS is used as the fiber material. A perfectly matched layer is used for boundary conditions. The correlation among optical power, material, and structural properties is analyzed by the finite element method. The sensing performance of the designed sensor is observed at THz frequency (1.4–3.8 THz). The results under high RI of the analytes (1.52–1.55) are as follows: maximum sensitivity of 98.31% for $x$ polarization and 98.26% for $y$ polarization, very low confinement loss of ${1.5} \times {{10}^{- 14}}\;{\rm dB}/{\rm m}$, narrow effective mode area of ${1.92} \times {{10}^{- 7}}\;{{\rm m}^2}$, minimum effective material loss of ${0.000164}\;{{\rm cm}^{- 1}}$, and very low waveguide dispersion of ${0.002 \pm 0.05}$ ps/THz/cm. In addition, the effect of variation of structural parameters on sensor performance is also analyzed. The proposed PC-PCF-based biosensor can be very useful for sensing higher RI biochemical analytes.

Full Article | PDF Article

More Like This

Terahertz ultrasensitive dual-core photonic crystal fiber microfluidic sensor for detecting high-absorption analytes

Shanshan Li, Hao Zhang, Fei Fan, and Shengjiang Chang
Appl. Opt. 60(19) 5716-5722 (2021)

THz spectroscopic sensing of liquid chemicals using hollow-core anti-resonant fiber

Sakawat Hossain, Aslam Mollah, Kamal Hosain, and Istihad Mahmud Ankan
OSA Continuum 4(2) 621-632 (2021)

U-grooved dual-channel plasmonic sensor for simultaneous multi-analyte detection

Abrar Islam, Firoz Haider, Rifat Ahmmed Aoni, Moqbull Hossen, Firoza Begum, and Rajib Ahmed
J. Opt. Soc. Am. B 38(10) 3055-3063 (2021)

Previous Article Next Article

Data Availability

Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (10)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (3)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (8)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

“ $w$ ” (µm)	Sensitivity	CL (dB/m)	EMA ( $m^{2}$ )	EML ( $c m^{- 1}$ )
48 ( $- 4 %$ )	98.01%	$8.41 \times 10^{- 14}$	$1.299 \times 10^{- 07}$	$2.43 \times 10^{- 4}$
50 (opt.)	98.31%	$7.06 \times 10^{- 14}$	$1.33 \times 10^{- 07}$	$1.62 \times 10^{- 4}$
52 ( $+ 4 %$ )	98.54%	$6.04 \times 10^{- 14}$	$1.35 \times 10^{- 07}$	$8.5 \times 10^{- 5}$

“ $d$ ” (µm)	Sensitivity	CL (dB/m)	EMA ( $m^{2}$ )	EML ( $c m^{- 1}$ )
96 ( $- 4 %$ )	98.121%	$8.37 \times 10^{- 14}$	$1.30 \times 10^{- 07}$	$2.52 \times 10^{- 4}$
100 (opt.)	98.31%	$7.06 \times 10^{- 14}$	$1.33 \times 10^{- 07}$	$1.6 \times 10^{- 4}$
104 ( $+ 4 %$ )	98.44%	$6.19 \times 10^{- 14}$	$1.37 \times 10^{- 07}$	$8.2 \times 10^{- 5}$

Ref. (year)	Frequency (THz)	Sensitivity	CL (dB/m)	EMA ( $m^{2}$ )	EML ( $c m^{- 1}$ )	WD (ps/THz/cm)
[27] (2018)	0.8–2	78.8%	$5.8 \times 10^{- 10}$	$8.4 \times 10^{- 8}$	—	—
[28] (2018)	0.8–2	96.8%	$6.9 \times 10^{- 12}$		0.0038	—
[26] (2019)	1.5–3.5	80.9%	$1.1 \times 10^{- 12}$	$1.8 \times 10^{- 7}$	—	$0.65 \pm 2.14$
[25] (2020)	0.4–1.6	87.0%	$2.1 \times 10^{- 6}$	$1.1 \times 10^{- 7}$	0.00965	$1.44 \pm 0.588$
[24] (2020)	0.8–3	94.0%	$1.0 \times 10^{- 12}$	$1.04 \times 10^{- 7}$	0.0118	—
[23] (2021)	0.5–1.5	95.1%	$1.0 \times 10^{- 10}$	$9 \times 10^{- 4}$	0.012	$- 0.15 \pm 0.15$
This work	1.4–3.8	98.3%	$7.0 \times 10^{- 14}$	$1.33 \times 10^{- 7}$	0.000162	$0.05 \pm 0.082$

“ $w$ ” (µm)	Sensitivity	CL (dB/m)	EMA ( $m^{2}$ )	EML ( $c m^{- 1}$ )
48 ( $- 4 %$ )	98.01%	$8.41 \times 10^{- 14}$	$1.299 \times 10^{- 07}$	$2.43 \times 10^{- 4}$
50 (opt.)	98.31%	$7.06 \times 10^{- 14}$	$1.33 \times 10^{- 07}$	$1.62 \times 10^{- 4}$
52 ( $+ 4 %$ )	98.54%	$6.04 \times 10^{- 14}$	$1.35 \times 10^{- 07}$	$8.5 \times 10^{- 5}$

“ $d$ ” (µm)	Sensitivity	CL (dB/m)	EMA ( $m^{2}$ )	EML ( $c m^{- 1}$ )
96 ( $- 4 %$ )	98.121%	$8.37 \times 10^{- 14}$	$1.30 \times 10^{- 07}$	$2.52 \times 10^{- 4}$
100 (opt.)	98.31%	$7.06 \times 10^{- 14}$	$1.33 \times 10^{- 07}$	$1.6 \times 10^{- 4}$
104 ( $+ 4 %$ )	98.44%	$6.19 \times 10^{- 14}$	$1.37 \times 10^{- 07}$	$8.2 \times 10^{- 5}$

Abstract

Data Availability

Cited By

Figures (10)

Tables (3)

Equations (8)

Journal of the Optical Society of America B