Polymer-based Photonic Crystal Cavity Sensor for Optical Detection in the Visible Wavelength Region

Maeno, Kenichi; Aki, Shoma; Sueyoshi, Kenji; Hisamoto, Hideaki; Endo, Tatsuro

doi:10.2116/analsci.32.117

Cited by 11 publications

(6 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Then, probe molecules can be immobilized on the enhanced localized EM field without any control to immobilize probe molecules site selectively, and AuNCA has high sensitivity for label-free biosensing (Figure b). Moreover, AuNCA can be fabricated by nanoimprint lithography (NIL), which is a simple, easy, inexpensive, and mass producible nanostructure fabrication process. − Hence, AuNCA would be suitable for practical applications in POCT.…”

Section: Introductionmentioning

confidence: 99%

Core–Shell-Structured Gold Nanocone Array for Label-Free DNA Sensing

Kawasaki

Yamada

Maeno

et al. 2019

ACS Appl. Nano Mater.

Self Cite

View full text Add to dashboard Cite

The refractive index sensitivity of a localized surface plasmon resonance (LSPR) sensor is correlated to an enhanced local electromagnetic (EM) field originating from noble metal nanostructures. Here, we demonstrated that extensive EM field enhancement by a gold (Au) nanocone array (AuNCA) allowed highly sensitive and label-free detection of biomolecules in the visible wavelength spectrum. The AuNCA consisted of a polymer core and an Au shell, which was fabricated by using simple and inexpensive nanoimprint lithography. Under LSPR excitation, AuNCA absorbs visible light of a specific wavelength and extensively enhances the EM field near its surface. It was shown that AuNCA had high refractive index sensitivity (417.5 nm/RIU) because of the large distribution of the enhanced EM field, covering a large surface of the NCA. Moreover, in DNA hybridization detection, a very low limit of detection of 161 fM was achieved, and 1-base mismatch DNA was successfully discriminated by using AuNCA.

show abstract

Section: Introductionmentioning

confidence: 99%

Core–Shell-Structured Gold Nanocone Array for Label-Free DNA Sensing

Kawasaki

Yamada

Maeno

et al. 2019

ACS Appl. Nano Mater.

Self Cite

View full text Add to dashboard Cite

show abstract

“…In PC-based structures, the micro-cavities are formed by point defects and waveguides are formed by line defects. The PC micro-cavities, owing to micro-sizes and high quality factors are excellent candidates to obtain photonic sensors [5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

A New Design of Pressure Sensor Based on a GaAs-based Two Dimensional Photonic Crystal Slab on SiO2 Substrate

Norouzi

Fasihi

2021

Preprint

View full text Add to dashboard Cite

This paper reports the design and three dimensional (3D) simulation of a new photonic crystal (PC) pressure sensor. The device is constructed using a GaAs-based 2D PC slab on SiO2 substrate. The strain/stress simulations and also the spectral simulations are done using CST Studio Suite. In this investigation, the sensitivity of the proposed pressure sensor is calculated by considering the variation of the refractive index and also the deformation of the structure. The numerical results show that when pressure is applied, the refractive index variations cause an increment in the resonant wavelength of the transmission spectrum, but the deformation factor cause a decrease in the resonant wavelength. It has been shown that the relationship between the applied pressure and the resonant wavelength of the designed micro-cavity is linear. Based on the simulation results, the quality factor of the designed micro-cavity and the sensitivity of the pressure sensor are 2200 and 3.5 nm / GPa, respectively.

show abstract

“…This further attributes to considerably high light-matter interaction at a very small scale, hence improved sensitivity. These properties are further explored in designing different PhC based optical sensors (Goyal and Pal 2015a, b); Abd El-Aziz et al 2019; Cunningham et al 2002;Maeno et al 2016;Chan et al 2009;Goyal et al 2016a, b;Heeres et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Design analysis of Bloch surface wave based sensor for haemoglobin concentration measurement

Goyal

Pal

2020

Appl Nanosci

View full text Add to dashboard Cite

In this paper, a Bloch Surface Waves (BSW) based sensor is proposed to estimate the haemoglobin concentration in human blood. The behaviour of the sensor is analysed using a transfer matrix method. The proposed structure is designed considering one-dimensional photonic crystal, where a defective top layer is deliberately introduced to confine a surface plasmon-like mode called Bloch mode at the top interface. The effective refractive index of top interface changes along with haemoglobin concentration. Thereby, monitoring the angel of incidence to confine BSW mode can helps in determining the haemoglobin concentration. The sensing capability, FWHM and figure-of-merit of the proposed structure are improved by optimizing the defect layer thicknesses, incident angels and wavelengths. Proposed structure shows an average FWHM and average sensitivity of around 0.00508 and 0.0133°/(g/L) respectively.

show abstract

Polymer-based Photonic Crystal Cavity Sensor for Optical Detection in the Visible Wavelength Region

Cited by 11 publications

References 23 publications

Core–Shell-Structured Gold Nanocone Array for Label-Free DNA Sensing

Core–Shell-Structured Gold Nanocone Array for Label-Free DNA Sensing

A New Design of Pressure Sensor Based on a GaAs-based Two Dimensional Photonic Crystal Slab on SiO2 Substrate

Design analysis of Bloch surface wave based sensor for haemoglobin concentration measurement

Contact Info

Product

Resources

About