Long period fiber grating based temperature-compensated high performance sensor for bio-chemical sensing applications

Garg, Ruchi; Tripathi, Saurabh Mani; Thyagarajan, K.; Bock, Wojtek J.

doi:10.1016/j.snb.2012.08.059

Cited by 77 publications

(31 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, we propose the device as a high performance sensor for single or multi-parameter sensing. Typically for multi-parameter sensing, interrogation schemes employing two gratings with distinct resonance bands [25] or two cascaded gratings with carefully designed inter-grating space for dual resonance [21] are used. In this respect, our proposed device may be advantageous due to its single grating dual resonance feature.…”

Section: Discussionmentioning

confidence: 99%

“…Above this value of core radius the PCF guides LP 21 and LP 02 modes as well. Numerical computations show that the turnaround point (TAP) appears at 1550 nm only when the core radius becomes half of the air-hole diameter.…”

Section: Influence Of the Photosensitive Core Radiusmentioning

confidence: 98%

“…This enhances the possibilities to discriminate these parameters from the device response [21]. Simultaneous application of temperature and strain to LPG 2 changes the resonance wavelengths by, where, i =1,2 represent the individual peaks; S εi and S T i are the strain and temperature sensitivities given by: ∂λ i ∂ε and ∂λ i ∂ T respectively, for the individual peaks.…”

Section: Simultaneous Measurement Of Strain and Temperaturementioning

confidence: 99%

See 2 more Smart Citations

Ultrasensitive Properties of a Long-Period Grating Inscribed in a Dual-Mode Photonic Crystal Fiber

Maity

Varshney

2014

IEEE Sensors J.

View full text Add to dashboard Cite

Sensitivity properties of a long-period grating inscribed in Ge-core, dual-mode photonic crystal fiber (PCF) have been studied numerically. While the fundamental mode of the PCF shows similar characteristics to conventional fibers, its higher order mode exhibits nonmonotonicity in phase matching curve that leads to dual resonance peaks. The dual peaks shift in opposite directions with any changes in strain or temperature and exploiting the separation between the peaks can result in an ultrasensitive device. Our analysis shows that the dual peaks separate by 180 nm when 2-mε strain is applied and 170 nm with a 275°C rise in temperature, which are much higher than the shift in single resonance peaks. Numerical investigations on simultaneous measurement of strain and temperature are also made for the dual resonance case. Furthermore, due to a relatively small cladding radius, the fundamental mode shows a peak shift of 1848 nm per refractive index units when the ambient refractive index changes from 1.325 to 1.35. We infer that our proposed device can be used as a high-performance sensor for single or multiparameter sensing.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Influence Of the Photosensitive Core Radiusmentioning

confidence: 98%

Section: Simultaneous Measurement Of Strain and Temperaturementioning

confidence: 99%

See 1 more Smart Citation

Ultrasensitive Properties of a Long-Period Grating Inscribed in a Dual-Mode Photonic Crystal Fiber

Maity

Varshney

2014

IEEE Sensors J.

View full text Add to dashboard Cite

show abstract

“…One of the widely employed types of nanomaterials with diameters between 1 and 100 nm are iron oxide NPs (IONPs). Much attention was drawn to their significant features, which make IONPs very suitable for potential technologic applications in materials engineering and biological sciences (Griesser et al, 2002;Harris, 2004;Fudouzi and Sawada, 2006;Gioux et al, 2010;Gabudean et al, 2012;Giorgetti et al, 2012;Frank et al, 2013;Garg et al, 2013;Gatto et al, 2013;Hasany et al, 2013;Ghosh and Collie, 2014;Gonella and Dai, 2014;Hashemizadeh and Huyeh, 2014;Hassan and Singh, 2014;Gui et al, 2015;Guisbiers et al, 2015;Harris et al, 2015;Helmbrecht et al, 2015;Garg, 2016). Since they are relatively nontoxic to human organs, magnetite and maghemite are selected to be used in biomedical applications.…”

Section: Metal Oxide Nps 321 Iron Oxidementioning

confidence: 99%

Hybrid nanomaterial: biocolloidals

Gözübenli¹,

Yasun²,

Dilsiz³

2017

Turk J Biol

View full text Add to dashboard Cite

Nanomaterials-based diagnostics have tremendous advantages over other conventional diagnostic systems in terms of sensitivity, specificity, and portability owing to the unique intrinsic properties of nanomaterials. Thus, there is a substantial need to develop and employ a broad spectrum of nanomaterials for biological and diagnostic applications. In this review, we focus on nanomaterials-assisted disease diagnosis utilizing different techniques such as photoluminescence, colorimetry, fluorescence, electrochemistry, microarray methods, surface plasmon resonance, and surface-enhanced Raman spectroscopy. In these techniques, different nanomaterials, including but not limited to gold and silver materials, metal oxides, and semiconductors, were employed according to their all-purpose chemical and physical properties. As the new properties of nanomaterials are discovered, their contributions to nanobiotechnology applications are vastly increased. In this review, the features of the selected nanobiomaterials, biological tag-modified nanomaterials, and their outstanding applications for the detection of specific biotargets have been summarized according to the latest studies. Nanomaterials contribute to the fields of photo/chemotherapy and biomedical imaging in particular, since all the biological events happen within this size range and beneficiary roles of nanoparticles (NPs) are countless in biomedical applications due to their unique physical and chemical properties. However, due to the necessity of specificity and selectivity, there is a clear ambition to study bioconjugation of NPs to increase the efficiency of the targeted biological applications. Thus, the combination of the specificity and the intrinsic properties of biohybrid NPs facilitate diagnostic and therapeutic applications.

show abstract

“…At a fundamental level, core mode LP 0,1 to cladding mode LP 0,n coupling takes place when phase-matching condition, λ resonance = (n eff, core -n eff, cladding )Λ, is satisfied [12], where, λ resonance is the coupling resonance wavelength of the cladding mode, n eff, core and n eff, cladding are respective effective indices of the core and the cladding modes, and Λ is grating period. The dependence of λ resonance on n eff, core and n eff, cladding makes SMF-LPG an excellent candidate for sensitive index transduction platform [13][14][15][16][17][18][19][20][21][22][23]. Compared with other techniques such as absorption spectroscopy, electrochemical methods, and mass spectrometry, the LPG has both the sensitivity and ease for in-line systems integration for label free measurement.…”

Section: Introductionmentioning

confidence: 99%

Lab-on-fiber optofluidic platform for in situ monitoring of drug release from therapeutic eluting polyelectrolyte multilayers

Tian¹,

Min²,

Kaňka³

et al. 2015

Opt. Express

View full text Add to dashboard Cite

A lab-on-fiber (LOF) optofluidic platform that provides physiologically relevant microenvironment was developed by integrating a long period grating (LPG) coupled with high order cladding mode to achieve high index sensitivity and a liquid-tight capillary tube assembly as a microfluidic chamber for LPG to mimic physiologically relevant microenvironment. We demonstrate the utility of LOF for in-situ monitoring the construction of the [chitosan (CHI)/poly (acrylic acid) (PAA)/gentamicin sulfate (GS)/PAA] n multilayers at monolayer resolution as well as evaluating the rate of GS release at a flow rate of 0.127 mL/min at 37 °C in real time. We reveal that GS is released at a faster rate under the dynamic flow condition than in a static medium. Our findings underscore the importance of conducting drug release studies in physiologically relevant conditions.

show abstract

Long period fiber grating based temperature-compensated high performance sensor for bio-chemical sensing applications

Cited by 77 publications

References 17 publications

Ultrasensitive Properties of a Long-Period Grating Inscribed in a Dual-Mode Photonic Crystal Fiber

Ultrasensitive Properties of a Long-Period Grating Inscribed in a Dual-Mode Photonic Crystal Fiber

Hybrid nanomaterial: biocolloidals

Lab-on-fiber optofluidic platform for in situ monitoring of drug release from therapeutic eluting polyelectrolyte multilayers

Contact Info

Product

Resources

About