scholarly journals Phase Measurement of Guided-Mode Resonance Device Using Digital Micromirror Device Gratings

Photonics ◽  
2021 ◽  
Vol 8 (5) ◽  
pp. 136
Author(s):  
Min-Xu Chiang ◽  
Jaturon Tongpakpanang ◽  
Wen-Kai Kuo
Keyword(s):  
Phase Difference ◽  
Measurement System ◽  
Incident Angle ◽  
Incident Light ◽  
Phase Shifting ◽  
Digital Micromirror Device ◽  
Light Passing ◽  
Grating Pattern ◽  
Guided Mode ◽  
Guided Mode Resonance

This paper reports on the measurement system of the phase difference between s- and p-polarization components of the light passing through a guided-mode resonance (GMR) device using a digital micromirror device (DMD) gratings as a digital phase-shifting device. The phase of the non-zeroth order diffraction beams of the grating pattern displayed on the DMD can exhibit a phase change when the grating pattern is shifted. Two nearest different diffraction orders of p-polarized and s-polarized beams can be used as the reference and measurement beams, respectively, and are combined to implement the phase-shifting interferometry (PSI). The phase difference between the s- and the p-polarization components of the incident light passing through the GMR device can be obtained by applying the four-step phase-shift algorithm to the DMD-based PSI system. Experimental results show that this measurement system has a phase detection limit of 1° and was able to obtain the abrupt phase difference curve of the GMR device versus the incident angle.

Wide wavelength range tunable guided-mode resonance filter based on incident angle rotation

2018 ◽  
Vol 66 (2) ◽  
pp. 161-167 ◽  
Author(s):  
Zhibin Ren ◽  
Yahui Sun ◽  
Kaipeng Zhang ◽  
Zihao Lin ◽  
Jiasheng Hu
Keyword(s):  
Wavelength Range ◽  
Incident Angle ◽  
Guided Mode ◽  
Wide Wavelength Range ◽  
Angle Rotation ◽  
Guided Mode Resonance

Properties of Nanostructured Resonant Leaky-Mode Photonic Devices

2008 ◽  
Vol 55 ◽  
pp. 101-107
Author(s):  
Robert Magnusson ◽  
Mehrdad Shokooh-Saremi
Keyword(s):  
Incident Light ◽  
Stop Band ◽  
Resonance Field ◽  
Photonic Devices ◽  
Leaky Mode ◽  
Guided Mode ◽  
Wave Effects ◽  
Guided Mode Resonance ◽  
Bandstop Filters ◽  
Leaky Waveguide

In this paper, we review the basic properties of resonant leaky mode elements implemented with periodic waveguide layers and consider their applicability in photonic devices and systems. Leaky waveguide modes can be exited when an incident light beam is coupled into the waveguide structure through an inscribed periodicity under phase-matching conditions. This results in generation of a guided-mode resonance field response in the spectrum. Device operation can be explained in terms of the photonic band structure and associated leaky-wave effects near the second stop band. Resonant devices such as bandpass/bandstop filters, polarizers, wideband reflectors, biosensors, tunable filters, and display pixels can be designed using this operational principle.

scholarly journals Investigation of Factors Affecting Sensitivity Enhancement of an Optical Fiber Probe for Microstructure Measurement Using Oblique Incident Light

2020 ◽  
Vol 10 (9) ◽  
pp. 3191
Author(s):  
Hiroshi Murakami ◽  
Akio Katsuki ◽  
Takao Sajima ◽  
Kosuke Uchiyama ◽  
Ichiro Yoshida ◽  
...  
Keyword(s):  
Laser Beam ◽  
Optical Fiber ◽  
Measurement System ◽  
Incident Angle ◽  
Incident Light ◽  
Sensitivity Enhancement ◽  
Measurement Sensitivity ◽  
Factors Affecting ◽  
Accuracy Measurement ◽  
Experimental Apparatus

Recently, the demand for accuracy measurement of microstructures has been remarkable. We have been developing a measurement system for microstructures using a stylus made of an optical fiber and prisms. In this measurement system, the oblique irradiation of the laser beam was employed to detect the displacement of the stylus shaft generated by contact between the stylus tip and the measured surface, and to expand the measurable area and depth. After these evaluations, we discovered that the sensitivity was enhanced with the increase in the incident angle of the laser beam on the stylus shaft. Therefore, in this study, we focus on the effect of the incident angle of light on the measurement sensitivity. First, the enhancement sensitivity is confirmed by using the basic experimental apparatus. Next, the relationship between the incident angle of the laser beam and the sensitivity is theoretically examined using the 3D ray-tracing method. Finally, the factor of the sensitivity enhancement is analyzed using the same method. As a result, it was confirmed that the sensitivity was enhanced with the increase in the incident angle of the laser beam on the stylus shaft.

Guided-Mode Resonance Filter for Three Primary Color Tuned by Incident Angle

2015 ◽  
Vol 42 (4) ◽  
pp. 0416002
Author(s):  
杨赛 Yang Sai ◽  
盛斌 Sheng Bin ◽  
张大伟 Zhang Dawei ◽  
钱林勇 Qian Linyong ◽  
陈鹏 Chen Peng ◽  
...  
Keyword(s):  
Incident Angle ◽  
Primary Color ◽  
Guided Mode ◽  
Guided Mode Resonance

Enhanced light trapping in Ge-on-Si-on-insulator photodetector by guided mode resonance effect

2018 ◽  
Vol 124 (5) ◽  
pp. 053101
Author(s):  
Zhi Liu ◽  
Jietao Liu ◽  
Buwen Cheng ◽  
Jun Zheng ◽  
Chuanbo Li ◽  
...  
Keyword(s):  
Light Trapping ◽  
Resonance Effect ◽  
Guided Mode ◽  
Guided Mode Resonance

scholarly journals A Compact Detection Platform Based on Gradient Guided-Mode Resonance for Colorimetric and Fluorescence Liquid Assay Detection

Sensors ◽  
2021 ◽  
Vol 21 (8) ◽  
pp. 2797
Author(s):  
Jing-Jhong Gao ◽  
Ching-Wei Chiu ◽  
Kuo-Hsing Wen ◽  
Cheng-Sheng Huang
Keyword(s):  
Limit Of Detection ◽  
Detection System ◽  
Fluorescence Emission ◽  
Assay Sensitivity ◽  
Detection Range ◽  
Current Form ◽  
Guided Mode ◽  
Spectral Detection ◽  
Guided Mode Resonance ◽  
Colorimetric Assays

This paper presents a compact spectral detection system for common fluorescent and colorimetric assays. This system includes a gradient grating period guided-mode resonance (GGP-GMR) filter and charge-coupled device. In its current form, the GGP-GMR filter, which has a size of less than 2.5 mm, can achieve a spectral detection range of 500–700 nm. Through the direct measurement of the fluorescence emission, the proposed system was demonstrated to detect both the peak wavelength and its corresponding intensity. One fluorescent assay (albumin) and two colorimetric assays (albumin and creatinine) were performed to demonstrate the practical application of the proposed system for quantifying common liquid assays. The results of our system exhibited suitable agreement with those of a commercial spectrometer in terms of the assay sensitivity and limit of detection (LOD). With the proposed system, the fluorescent albumin, colorimetric albumin, and colorimetric creatinine assays achieved LODs of 40.99 and 398 and 25.49 mg/L, respectively. For a wide selection of biomolecules in point-of-care applications, the spectral detection range achieved by the GGP-GMR filter can be further extended and the simple and compact optical path configuration can be integrated with a lab-on-a-chip system.

scholarly journals Topological guided-mode resonances at non-Hermitian nanophotonic interfaces

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Ki Young Lee ◽  
Kwang Wook Yoo ◽  
Youngsun Choi ◽  
Gunpyo Kim ◽  
Sangmo Cheon ◽  
...  
Keyword(s):  
Fundamental Study ◽  
One Dimensional ◽  
Guided Mode ◽  
Wall Structures ◽  
Potential Applications ◽  
Photonic Microstructures ◽  
Guided Mode Resonance ◽  
The One ◽  
Photonic Band ◽  
Topological Correlations

Abstract The topological properties of photonic microstructures are of great interest because of their experimental feasibility for fundamental study and potential applications. Here, we show that robust guided-mode-resonance states exist in photonic domain-wall structures whenever the complex photonic band structures involve certain topological correlations in general. Using the non-Hermitian photonic analogy of the one-dimensional Dirac equation, we derive essential conditions for photonic Jackiw-Rebbi-state resonances taking advantage of unique spatial confinement and spot-like spectral features which are remarkably robust against random parametric errors. Therefore, the proposed resonance configuration potentially provides a powerful method to create compact and stable photonic resonators for various applications in practice.

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