T-grating on a nano-cavity array based refractive index sensor

Yasir Fatha Abed; Md Asif Hossain Bhuiyan; Sajid Muhaimin Choudhury

doi:10.1364/JOSAB.426526

Journal of the Optical Society of America B
Vol. 38,
Issue 9,
pp. 2669-2679
(2021)
•https://doi.org/10.1364/JOSAB.426526

T-grating on a nano-cavity array based refractive index sensor

Yasir Fatha Abed, Md Asif Hossain Bhuiyan, and Sajid Muhaimin Choudhury

Not Accessible

Your library or personal account may give you access

Get PDF
Email
Share
Get Citation
Copy Citation Text
Yasir Fatha Abed, Md Asif Hossain Bhuiyan, and Sajid Muhaimin Choudhury, "T-grating on a nano-cavity array based refractive index sensor," J. Opt. Soc. Am. B 38, 2669-2679 (2021)

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

Check for updates

Abstract

We report a refractive index sensor comprising a unique T-grating on top of periodic nano-cavities. The sensor has two resonant modes sensitive to different regions of the structure with low inter-region interference, hence allowing simultaneous detection of two different analytes or more accurate detection of a single analyte. The sensor also provides a self-referencing feature for a broad range of refractive indices, from 1.3 to 1.5. Using the finite difference time domain method, sensitivities of 801.7 nm ${{\rm{RIU}}^{- 1}}$ and 1386.8 nm ${{\rm{RIU}}^{- 1}}$ were recorded for the two modes. The versatility of the structure makes the sensor a prominent candidate for biochemical and other sensing applications.

Full Article | PDF Article

More Like This

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)

Highly efficient symmetrical dual-channel D-type photonic crystal fiber surface plasmon resonance sensor

Hairui Fang, Chenjing Wei, Wenjuan Jiang, Dong Wang, and Jing Li
J. Opt. Soc. Am. B 39(1) 1-8 (2022)

Surface plasmon resonance sensor for low refractive index detection based on microstructured fiber

Jianshuai Wang, Li Pei, Ji Wang, ZuLiang Ruan, Jingjing Zheng, and Jing Li
J. Opt. Soc. Am. B 36(11) 3104-3110 (2019)

Previous Article Next Article

Supplementary Material (1)

Name	Description
Supplement 1	Supplemental document.

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 (7)

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 (2)

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

Structure	Sensitivity (nm/RIU)	FWHM (nm)	FOM ( ${R I U}^{- 1}$ )	RI Range	Reference
Bragg grating based gold coated multi-channel fiber	200	0.285	700	—	[63]
Cascaded single-mode fiber with thin-core fiber	30.29 and 79.335	—	—	1.333–1.3786	[64]
Side coupled metal–dielectric–metal slot cavity	1131	$7.06 \times 10^{- 5}$	$1.6 \times 10^{7}$	1.00–1.10	[65]
Cross rectangular cavity with metal–insulator–metal	980 and 1040	4.95 and 5.22	197.6 and 198.9	—	[66]
Polymeric micro-ring resonator	200	0.15	1333.33	—	[67]
Whispering gallery resonator	240	1	240	—	[68]
T-shaped grating on top of periodic nano-cavities	801.7 and 1386.8	7.78 and 41.29	103.05 and 33.58	1.33–1.37	This work

Structure	Active Mode Sensitivity (nm/RIU)	Ref. Mode Sensitivity (nm/RIU)	Active Mode FWHM (nm)	Active Mode FOM ( ${R I U}^{- 1}$ )	RI Range	Reference
Titanium oxide grating on thin gold film	693.88	23.33	27.5	25.23	1.32–1.35	[47]
Ag grating on top of $S i O_{2}$ substrate	445	—	—	—	1.329–1.359	[69]
$S i_{3} N_{4}$ on top of Ag thin film on $S i O_{2}$ substrate	580	40	—	—	1.33–1.34	[48]
U-shaped cavities side-coupled to a metal–dielectric–metal waveguide	917	—	5.09	180	1.000–1.015	[70]
Metallic grating structure	470	—	15.16	31	1.33–1.35	[71]
T-shaped grating on nano-cavity	800	2.82	7.78	103.05	1.3–1.5	this work

Structure	Sensitivity (nm/RIU)	FWHM (nm)	FOM ( ${R I U}^{- 1}$ )	RI Range	Reference
Bragg grating based gold coated multi-channel fiber	200	0.285	700	—	[63]
Cascaded single-mode fiber with thin-core fiber	30.29 and 79.335	—	—	1.333–1.3786	[64]
Side coupled metal–dielectric–metal slot cavity	1131	$7.06 \times 10^{- 5}$	$1.6 \times 10^{7}$	1.00–1.10	[65]
Cross rectangular cavity with metal–insulator–metal	980 and 1040	4.95 and 5.22	197.6 and 198.9	—	[66]
Polymeric micro-ring resonator	200	0.15	1333.33	—	[67]
Whispering gallery resonator	240	1	240	—	[68]
T-shaped grating on top of periodic nano-cavities	801.7 and 1386.8	7.78 and 41.29	103.05 and 33.58	1.33–1.37	This work

Structure	Active Mode Sensitivity (nm/RIU)	Ref. Mode Sensitivity (nm/RIU)	Active Mode FWHM (nm)	Active Mode FOM ( ${R I U}^{- 1}$ )	RI Range	Reference
Titanium oxide grating on thin gold film	693.88	23.33	27.5	25.23	1.32–1.35	[47]
Ag grating on top of $S i O_{2}$ substrate	445	—	—	—	1.329–1.359	[69]
$S i_{3} N_{4}$ on top of Ag thin film on $S i O_{2}$ substrate	580	40	—	—	1.33–1.34	[48]
U-shaped cavities side-coupled to a metal–dielectric–metal waveguide	917	—	5.09	180	1.000–1.015	[70]
Metallic grating structure	470	—	15.16	31	1.33–1.35	[71]
T-shaped grating on nano-cavity	800	2.82	7.78	103.05	1.3–1.5	this work

Yasir Fatha Abed	https://orcid.org/0000-0001-5926-3508
Md Asif Hossain Bhuiyan	https://orcid.org/0000-0002-1427-661X
Sajid Muhaimin Choudhury	https://orcid.org/0000-0002-0216-7125

Abstract

Supplementary Material (1)

Data Availability

Cited By

Figures (7)

Tables (2)

Equations (8)

Journal of the Optical Society of America B