Article
Engineering, Electrical & Electronic
Qiang Liu, Zhenguo Jing, Ang Li, Yueying Liu, Zhenjie Xia, Wei Peng
Summary: This work proposes a novel frequency-scanned parallel phase-shifting interferometry for simultaneous detection of high-frequency dynamic parameters and low-frequency quasi-static parameters. A MI and a 3 x 3 coupler are used for high-frequency vibration measurement, with a frequency swept laser source and modified phase shifting algorithm significantly improving the sampling rate of the dynamic MI. It can directly measure the asymmetric parameters of non-ideal couplers and perform spectral demodulation of multiple quasi-static parameters.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Review
Materials Science, Multidisciplinary
Xuanru Zhang, Wen Yi Cui, Yi Lei, Xin Zheng, Jingjing Zhang, Tie Jun Cui
Summary: Localized surface plasmons (LSPs) in metal nanoparticles are highly sensitive to the dielectric environment, making them ideal sensors. The concept has expanded to spoof LSPs in microwave and terahertz frequencies, offering deep-subwavelength confinement and sensitivity enhancement with low loss. Advances in technology have enabled applications in various fields such as liquid sensing, gas sensing, and wearable sensing.
ADVANCED MATERIALS TECHNOLOGIES
(2021)
Article
Engineering, Electrical & Electronic
Radhika K. Poduval, Joanna M. Coote, Charles A. Mosse, Malcolm C. Finlay, Adrien E. Desjardins, Ioannis Papakonstantinou
Summary: A novel technique for constructing microscale extrinsic fiber-optic sensors capable of simultaneously measuring pressure and temperature with sensitivity values suited to intravascular physiological monitoring has been presented. The precision-fabricated photoresist microstructure enables a wide range of fiber-optic sensors for guiding minimally invasive medical procedures.
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Ilaria Di Luch, Pierpaolo Boffi, Maddalena Ferrario, Giuseppe Rizzelli, Roberto Gaudino, Mario Martinelli
Summary: The text describes the deployment of optical fibers in urban infrastructure for high-speed WDM traffic data transmission, as well as network surveillance and identification of dynamic stress events using a counter-propagating interferometer sensing system in a ring layout. Experimental results show that the proposed sensing solution operates successfully in urban fiber networks, providing significant added value to the fiber infrastructure.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Umm-I-Kalsoom, Nisar Ali, Shazia Bashir, Samina Akbar, Muhammad Shahid Rafique, Ali Mohammad Alshehri, Narjis Begum, Tanveer Iqbal, Aneela Anwar
Summary: The present study examined the impact of KrF Excimer laser irradiation on Cadmium (Cd) targets, revealing the formation of laser induced nano/micro structures under different numbers of laser pulses. Results showed distinct surface structures generated in air versus propanol during the irradiation process.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Engineering, Electrical & Electronic
Santosh Kumar Sahu, Samyuktha K. Reddy, Mandeep Singh, Eugene Avrutin
Summary: In this work, a nanoscale 3D hybrid plasmonic waveguide (HPWG) refractive index-cum-temperature sensor was proposed and simulated. It can be used for sensing the refractive index and temperature of aqueous analytes. Numerical simulations were performed to predict the sensitivity of the device, and the sensor was shown to be suitable for next-generation on-chip biochemical sensing applications.
IEEE PHOTONICS TECHNOLOGY LETTERS
(2022)
Article
Engineering, Electrical & Electronic
Lei Kong, Ke Cui, Jiabin Shi, Ming Zhu, Simeng Li
Summary: A two-step one-dimensional phase unwrapping algorithm is proposed using encoding and deep convolutional neural network (DCNN) for phase unwrapping. Simulation and experimental results demonstrate that the method performs well in low signal-to-noise ratio (SNR) and remains stable even for negative SNR.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Yuri H. Isayama, Hugo E. Hernandez-Figueroa
Summary: A novel hybrid multimode interferometer is proposed and demonstrated for sensing applications operating with both TE and TM polarizations simultaneously. It can be used as a biosensor at a wavelength of 633 nm, but its applications are not limited to that area. The design of the multimode waveguide core and the excitation structure result in distinct confinement characteristics and high device sensitivity. The hybrid TE/TM approach achieves smaller footprint and opens possibilities for a new range of MMI devices.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Review
Engineering, Mechanical
Dongxu Wu, Fengzhou Fang
Summary: Optical interferometry is a powerful tool in precision manufacturing for measuring and characterizing areal surface topography, but existing techniques are insufficient to meet the increasing demands for accuracy, speed, robustness, and dynamic range. This paper provides an in-depth perspective on surface topography reconstruction for optical interferometric measurements, presenting principles, configurations and applications of typical optical interferometers, as well as summarizing recent advances in fringe analysis algorithms. New developments in measurement accuracy, noise resistance, self-calibration ability, and computational efficiency are discussed, along with the challenges facing optical interferometry techniques in surface topography measurement and proposed solutions using advanced techniques.
FRONTIERS OF MECHANICAL ENGINEERING
(2021)
Article
Engineering, Electrical & Electronic
Qingguo Song, Yuze Dai, Bolin Ye, Xiangpeng Xiao, Chengjun Huang, Chengbo Mou, Qizhen Sun, Lin Zhang, Zhijun Yan
Summary: The proposed silver-coated 45 degrees radiated tilted fiber grating (45 degrees RTFG) based interferometer is compact and suitable for optical fiber sensing. Experimental results show that the interferometer with a polarization extinction ratio of 11 dB has spectral visibility of 26 dB, and exhibits different spectral responses to temperature, strain, and twist.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Nauman Ali, Usman Zabit, Olivier D. Bernal
Summary: A method for recovering displacements with nanometric precision based on spectral analysis of self-mixing laser interferometric signal feedback phase is proposed. This method, an enhancement of TFSP, provides a better in-depth analysis of the signal spectrum to detect even lower amplitude vibrations. Experimental results show a significant improvement over TFSP, allowing the recovery of target vibrations with amplitude down to approximately λ/32.
IEEE SENSORS JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Jose A. Flores-Bravo, Ruben Fernandez, Enrique Antonio Lopez, Joseba Zubia, Axel Schulzgen, Rodrigo Amezcua Correa, Joel Villatoro
Summary: This study demonstrates that a single supermode interferometer can monitor two parameters simultaneously by utilizing strongly coupled multicore fiber and standard single mode fiber. The reflection spectrum of the interferometer changes with refractive index and temperature, allowing for easy decoding of interference patterns in the Fourier domain. An important advantage of this device is that the length of the multicore fiber does not affect sensor performance, and the device can be reused multiple times.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Bin Liu, Yuxi Ruan, Yanguang Yu
Summary: Self-mixing interferometry (SMI) is a promising non-destructive sensing technology with advantages of simplicity in system structure and high resolution in measurement. In this article, an all-fiber SMI linear sensor for real-time tracking acoustic emission (AE) signals is designed, showing comparable AE detection capability to piezoelectric sensor.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Luis Costa, Zhongwen Zhan, Alireza Marandi
Summary: By using mode-walk-off interferometry, we have introduced a position-resolved sensing technique that can measure and localize physical changes in optical fibers without relying on round-trip time-of-flight measurements. This method overcomes the fundamental barriers of bidirectional propagation, making it compatible with fiber communication links containing non-reciprocal elements.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Lu Qin, Fei Liu, Yinping Miao, Kailiang Zhang
Summary: The research investigates infrared multi-narrowband tunable plasmonic induced transparency and its application as a plasmonic sensor. By exciting quasi-guided modes in the Al2O3/SiO2 slab waveguide with plasmonic periodic E shaped metallic nanostructures, multiple Fano-shaped transmissions are achieved.
IEEE SENSORS JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Petr Hlubina, Milena Lunackova, Dalibor Ciprian
OPTICAL MATERIALS EXPRESS
(2019)
Article
Optics
Petr Hlubina, Petra Urbancova, Dusan Pudis, Matej Goraus, Daniel Jandura, Dalibor Ciprian
Article
Materials Science, Multidisciplinary
M. Gryga, D. Vala, P. Kolejak, L. Gembalova, D. Ciprian, P. Hlubina
OPTICAL MATERIALS EXPRESS
(2019)
Article
Optics
Michal Gryga, Dalibor Ciprian, Petr Hlubina
Article
Chemistry, Analytical
Roman Kanok, Dalibor Ciprian, Petr Hlubina
Article
Optics
Michal Gryga, Dalibor Ciprian, Petr Hlubina
Article
Chemistry, Analytical
Michal Gryga, Dalibor Ciprian, Petr Hlubina
Article
Chemistry, Analytical
Petra Urbancova, Jakub Chylek, Petr Hlubina, Dusan Pudis
Article
Optics
M. Gryga, D. Ciprian, L. Gembalova, P. Hlubina
Summary: The sensing abilities of a one-dimensional photonic crystal (1DPhC) were analyzed theoretically and experimentally using a new wavelength interrogation interference method. The research focused on gas sensing based on Bloch surface wave (BSW) resonance and liquid analyte sensing based on self-referenced guide-mode resonance (GMR), achieving high sensitivity and figure of merit (FOM) values. The experimental results confirmed the theoretical models, demonstrating accuracy and repeatability in the measurements.
Article
Optics
P. Hlubina, M. Gryga, D. Ciprian, P. Pokorny, L. Gembalova, J. Sobota
Summary: The paper presents the design of a truncated one-dimensional photonic crystal comprising TiO2/SiO2 bi-layers for a highly sensitive liquid analyte sensor utilizing Bloch surface wave resonances. Experimental and theoretical results show that BSW resonances exhibit high sensitivity and performance metrics for both p- and s-polarized waves. This alternative to SPR sensors offers advantages of higher figure of merit and mechanical robustness, particularly evident in responses to aqueous solutions of NaCl across different refractive index ranges.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Chemistry, Analytical
Roman Kanok, Petr Hlubina, Lucie Gembalova, Dalibor Ciprian
Summary: Interferometric optical sensing methods based on the phase shift of Bloch surface waves (BSWs) and guided waves (GWs) supported by a one-dimensional photonic crystal are presented. Sensitivity to relative humidity (RH) is demonstrated through interferometric techniques in both spectral and spatial domains. The experimental results show efficient optical sensing with high sensitivity to RH, which has applications in various research areas.
Article
Chemistry, Analytical
Michal Gryga, Dalibor Ciprian, Petr Hlubina
Summary: Spectral-domain resonances for cavities formed by two distributed Bragg reflectors were analyzed both theoretically and experimentally. The study demonstrated the sensitivity and figure of merit of the cavity, as well as its application as a spectral filter. The findings suggest that the DBR-based resonators offer advantages including normal incidence of light and narrow-spectral-width resonances.
Article
Optics
Tomas Fort, Roman Kanok, Petr Hlubina, Pavel Pokorny, Jaroslav Sobota
Summary: This study demonstrates an efficient sensing method for both gaseous and aqueous analytes using Bloch surface waves (BSWs) and guided waves (GWs) on a truncated one-dimensional photonic crystal (1DPhC). The study shows that the 1DPhC can support guided waves excited by an s-polarized wave for gaseous analytes, and both s-polarized and p-polarized waves can be utilized for sensing applications in aqueous analytes. This is the first demonstration of deep BSW-based resonances in two orthogonal polarizations and a narrow resonance in one of them.
Article
Chemistry, Multidisciplinary
Jakub Chylek, Petra Maniakova, Petr Hlubina, Jaroslav Sobota, Dusan Pudis
Summary: In this paper, simple and highly sensitive plasmonic structures are analyzed both theoretically and experimentally. The sensitivity and figure of merit of the structures are improved by increasing the thickness of the silicon dioxide overlayer. The designed structures show advantages in terms of durability and repeatability compared to commonly used structures for aqueous analyte sensing.
Article
Crystallography
Michal Gryga, Dalibor Ciprian, Lucie Gembalova, Petr Hlubina
Summary: A one-dimensional photonic crystal (1DPhC) with a defect layer is used as an optical filter for narrow linewidth LED-based sources. The 1DPhC consists of TiO2 and SiO2 layers and exhibits two narrow defect mode resonances. By combining the optical filter with LEDs, interferometry experiments are conducted and the Lorentzian profile defect mode resonances with linewidths of 1.72 nm and 1.29 nm are successfully resolved. Additionally, a simple method to tune the resonances by changing the angle of incidence of light is demonstrated. All-dielectric optical filters based on 1DPhCs with a defect layer and combined with LEDs provide an effective alternative to standard coherent sources, offering advantages such as narrow spectral linewidths and variable output power, with the potential for tunability.
