Article
Optics
Henry Tan, Jasper J. Cadusch, Jiajun Meng, Kenneth B. Crozier
Summary: This study optimized filter design through simulations and genetic algorithms to achieve better identification of liquid and gaseous chemicals. The results showed that classifiers trained with optimized filter sets outperformed those trained with evenly spaced and handpicked filters targeting absorption bands of specific chemicals.
Article
Optics
Dekang Chen, Stephen D. March, Andrew H. Jones, Yang Shen, Adam A. Dadey, Keye Sun, J. Andrew McArthur, Alec M. Skipper, Xingjun Xue, Bingtian Guo, Junwu Bai, Seth R. Bank, Joe C. Campbell
Summary: The development of mid-wave infrared photonics has led to a demand for high-performance photodetectors operating in this range. However, the high dark current in narrow-bandgap materials limits the signal-to-noise ratio of mid-wave infrared detection. To tackle this challenge, an avalanche photodiode design using photon-trapping structures is introduced, which enhances quantum efficiency and reduces dark current. The achieved results show significantly improved performance compared to previous photodiodes, with high quantum efficiency, low dark current, increased bandwidth, and gain-bandwidth product.
Article
Optics
Feng Zhou, Xiyuan Lu, Ashutosh Rao, Jordan Stone, Gregory Moille, Edgar Perez, Daron Westly, Kartik Srinivasan
Summary: A novel scheme, called hybrid-mode-family OPO (hOPO), is proposed in this study, which uses different families of transverse spatial modes for optical parametric oscillation. Compared to traditional single-mode-family OPO, hOPO shows better robustness in dispersion, device geometry, pump frequency, and temperature, and is capable of generating coherent visible and infrared light sources efficiently.
LASER & PHOTONICS REVIEWS
(2022)
Article
Computer Science, Information Systems
Shiyi Chen, Ming Yin, Yongzhi Luo, Xiyue Lin
Summary: This paper presents a novel design of optical parametric oscillators (OPOs) based on all-optical poled silicon nitride, which allows for adjustable poling period. The output characteristics of the OPO are investigated in three different modes, and the ranges of output wavelengths are obtained under various pump and poling fundamental wave conditions. This new OPO design offers enhanced flexibility for efficient mid-infrared laser generation.
Article
Optics
Imtiaz Alamgir, Mohsen Rezaei, Martin Rochette
Summary: This study presents a fiber optical parametric oscillator (FOPO) designed entirely out of soft glass fiber, overcoming the limitation of strong material absorption of silica glass in the mid-infrared spectral range. It demonstrates wavelength-tunable light emission in the mid-infrared range, which is a promising step towards the development of fully fiberized mid-infrared light sources.
Article
Optics
Ruirui Song, Qinling Deng, Shaolin Zhou, Mingbo Pu
Summary: Active wavefront control with high efficiency is demonstrated by combining catenary-based meta-atoms with chalcogenide phase change material (PCM), showing switchable beam deflection and meta-axicon for zero order Bessel beam generation, paving the way for constructing active photonic devices with large contrast ratio.
Article
Optics
Inna Kviatkovsky, Helen M. Chrzanowski, Sven Ramelow
Summary: Quantum imaging with undetected photons (QIUP) is a powerful imaging tool that utilizes the spatial entanglement of photon pairs to achieve high-resolution imaging. By exploiting the tight position correlations formed within photon pairs at birth, imaging in challenging spectral regions becomes possible. This technique has significant potential for applications in life sciences and industrial imaging.
Article
Optics
Haibin Sun, Xiaolong Liu, Li Zhao, Jianxin Jia, Changhui Jiang, Jiamin Xiao, Yuwei Chen, Long Xu, Zhiyong Duan, Peng Rao, Shengli Sun
Summary: This study reveals the mechanism and influencing factors of infrared absorption in hyperdoped silicon through the measurement of optical absorptance and calculations based on coherent potential approximation. This has important implications for the optoelectronic applications of this material.
Article
Engineering, Electrical & Electronic
Simon Chun Kiat Goh, Li Lynn Shiau, Lin Zhang, Bongkwon Son, Qimiao Chen, Jian Zhong, Salim Teddy, Chuan Seng Tan
Summary: Germanium-tin (GeSn) is a CMOS-compatible group-IV material with potential applications in infrared light sources and photodetectors. High-quality single-crystalline GeSn with low compressive stress and defects has been grown on a Ge buffer on a Si substrate, showing promise for supporting light propagation beyond 25 μm wavelength.
IEEE PHOTONICS JOURNAL
(2021)
Article
Multidisciplinary Sciences
Johann Riemensberger, Nikolai Kuznetsov, Junqiu Liu, Jijun He, Rui Ning Wang, Tobias J. Kippenberg
Summary: This study demonstrates a photonic-integrated-circuit-based travelling-wave optical parametric amplifier that achieves net signal gain in the continuous-wave regime. By using ultralow-loss, dispersion-engineered Si3N4 photonic integrated circuits, researchers achieved a continuous parametric gain of 12 dB, surpassing the on-chip optical propagation loss and fibre-chip-fibre coupling losses in the telecommunication C band.
Article
Nanoscience & Nanotechnology
Qibing Sun, Wei Wu, Yi Wang, Yu Yang, Lei Shi, Xianshun Ming, Leiran Wang, Keyi Wang, Wei Zhao, Wenfu Zhang
Summary: Mid-infrared optical parametric oscillators (OPOs) are of great importance in precision spectroscopy and trace gas detection, and the challenge of realizing broadband mid-infrared OPOs within a single cavity still remains.
Article
Optics
Yangbo Wu, Zhibo Qu, Ahmed Osman, Chen Wei, Wei Cao, Antulio Tarazona, Swe Zin Oo, Harold M. H. Chong, Otto L. Muskens, Goran Z. Mashanovich, Milos Nedeljkovic
Summary: A waveguide-based bolometer operating in the 3.72-3.88 micrometer wavelength range has been developed, with significant improvements in responsivity compared to previous silicon-on-insulator bolometers. Potential for further improvement in thermal conductance through device redesign is suggested.
Review
Optics
Nikolay L. Kazanskiy, Svetlana N. Khonina, Muhammad A. Butt
Summary: The exploration and implementation of silicon photonics for sensor applications in both the near-infrared (NIR) and mid-infrared (MIR) ranges have shown promising results. With the advantages of low-loss silicon waveguides, compact size, and high sensitivity, the silicon photonics devices have the potential to revolutionize optical sensing in terms of cost-effectiveness and performance.
Article
Optics
Masaki Asobe, Daiki Yagi, Yuki Kawabata, Takeshi Umeki, Koji Enbutsu, Takushi Kazama, Ryoichi Kasahara
Summary: This study demonstrates optical parametric amplification in the range of 1.3-1.8 μm by using a periodically poled LiNbO3 (PPLN) waveguide as a nonlinear medium and varying the detuning of the pump wavelength. The detuning range is expanded by using a multiple-quasi-phase-matched (M-QPM) LiNbO3 waveguide for pump generation and temperature control of the PPLN waveguide. Broadband optical amplification and wavelength conversion through difference frequency generation (DFG) are considered useful for expanding the bandwidth of optical communication.
Article
Optics
Mingchen Liu, Robert M. Gray, Arkadev Roy, Kirk A. Ingold, Evgeni Sorokin, Irina Sorokina, Peter G. Schunemann, Alireza Marandi
Summary: This paper reports a method to generate high power and high efficiency optical frequency combs in the mid-infrared spectral region. By utilizing an optical parametric oscillator operating in the simulton regime to form purely quadratic solitons, superior performance compared to previous demonstrations and other sources is achieved.
LASER & PHOTONICS REVIEWS
(2022)
Article
Optics
Murat Erhan Cimen, Omer Faruk Boyraz, Mustafa Zahid Yildiz, Ali Fuat Boz
Summary: The study proposes a fractal technique for feature extraction from hand vessel pattern images, which has shown promising and optimistic results on the dorsal vein databases of Bosphomus and SUAS compared to other known techniques. This fractal size based tissue analysis method, calculated by box counting method, is a new approach in determining the tissue properties of the dorsal hand vein.
Article
Optics
Mustafa Mert Bayer, Ozdal Boyraz
Summary: The paper introduces a complementary phase detection algorithm to enhance the capabilities of MTCW lidar for single-shot simultaneous ranging and velocimetry measurements, demonstrating the concept through numerical case study and experimental work. The velocity resolutions are limited by frequency resolution and the ranging resolution is determined by temporal resolution in a 6-tone MTCW lidar system.
Article
Thermodynamics
Mohammad Wahiduzzaman Khan, Ozdal Boyraz
Summary: We have developed an uncooled, high-sensitivity terahertz detector by integrating plasmonic absorbers and transducer beams made of phase changing materials. This design allows for spectrum selectivity and tunability in radiation absorption across a wide band in the THz regime, as well as high-sensitivity detection in a small-footprint device.
INTERNATIONAL JOURNAL OF THERMOPHYSICS
(2023)
Article
Optics
Omer Faruk Boyraz, Emre Guleryuz, Akif Akgul, Mustafa Zahid Yildiz, Harun Emre Kiran, Jawad Ahmad
Summary: Hand vein images are important for identification systems, especially dorsal hand vein images due to their reliability and contactless procedure. A new identification application is proposed in this article, using chaos-based security mechanism and improved SURF method, which selects vein segments as features and eliminates mismatching points to increase accuracy.
Article
Optics
Md Shafiqul Islam, Kaveh Shahverdi, Ozdal Boyraz
Summary: We propose a metalens integrated receiver for free space optical communication that can perform reliably in the presence of angle of arrival fluctuations jitter. Our proof-of-concept shows that the receiver can tolerate up to a 2.5 mrad angle of arrival fluctuations without a 3 dB power penalty when using a 20 μm detector radius. We design a meta unit cell to achieve an optimized phase profile and simulate the proposed architecture in quasi-3D full wave.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
(2023)
Article
Optics
Nathaniel Furman, Tarek Mealy, Md Shafiqul Islam, Ilya Vitebskiy, Ricky Gibson, Robert Bedford, Ozdal Boyraz, Filippo Capolino
Summary: We introduce a glide symmetric optical waveguide with a stationary inflection point (SIP) in the Bloch wavenumber dispersion relation. The SIP is a third-order exceptional point of degeneracy (EPD) where three Bloch eigenmodes coalesce to form a frozen mode with zero group velocity and infinite amplitude. The incorporation of chirped distributed Bragg reflectors and distributed coupling between waveguides enhances the characteristics of the frozen mode regime. The frozen mode regime has great potential for light amplification and lasing in optical delay lines, sensors, and modulators.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Jorge Alfonso Tavares-Negrete, Ceren Babayigit, Sahar Najafikoshnoo, Sang Won Lee, Ozdal Boyraz, Rahim Esfandyarpour
Summary: As a popular 3D bioprinting technique, digital light processing (DLP) provides high-throughput and high-resolution constructs with precise chemical and biological factor distributions. However, challenges such as phototoxicity, printing time, and limited biocompatible/photo-cross-linkable materials remain. The novel DLP-based 3D-bioprinting technology, photopolymerization of orderly extruded multi-materials (POEM), demonstrates rapid and high-resolution printing of multi-material, multi-layer, and cell-laden structures with high cell viability and metabolic activity.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Engineering, Electrical & Electronic
Mohamed Y. Nada, Tarek Mealy, Md Shafiqul Islam, Ilya Vitebskiy, Ricky Gibson, Robert Bedford, Ozdal Boyraz, Filippo Capolino
Summary: We have designed a three-way silicon optical waveguide with a stationary inflection point (SIP), which is a third order exceptional point of degeneracy (EPD) where three Bloch modes coalesce forming a frozen mode with greatly enhanced amplitude. This design consists of a coupled resonators optical waveguide (CROW) coupled to a parallel straight waveguide. The proposed structure supports three pairs of reciprocal Bloch eigenmodes, propagating and/or evanescent, and enables a design procedure based on minimizing the eigenmodes' coalescence parameter.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Mustafa Mert Bayer, Ataberk Atalar, Xun Li, Haoyu Xie, Ozdal Boyraz
Summary: This manuscript proposes an autonomous optical clock-free localization and navigation (CLAN) system that eliminates the need for synchronized clocks in accurate positioning and navigation. It demonstrates that the CLAN system can achieve precise localization and navigation in long-range scenarios without relying on time information.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Proceedings Paper
Engineering, Aerospace
Mustafa Mert Bayer, Ataberk Atalar, Xun Li, Haoyu Xie, Ozdal Boyraz
Summary: We propose and demonstrate an autonomous photonics localization and navigation system that operates without time clocks. Experimental results show that a remote receiver located 2km away from the transmitter can accurately determine its relative location and measure incremental changes in distance without the need for time information. This technology has great potential for long-range localizations, autonomous navigations, and satellite operations.
2023 IEEE AEROSPACE CONFERENCE
(2023)
Proceedings Paper
Engineering, Electrical & Electronic
M. Mert Bayer, Berken Utku Demirel, Ataberk Atalar, Xun Li, Haoyu Xie, Ozdal Boyraz
Summary: The phase-based multi-tone continuous wave (PB-MTCW) lidar technology enables high-resolution single-shot simultaneous ranging and velocimetry measurements at distances beyond the coherence length of a continuous wave (CW) laser. Machine learning algorithms improve the ranging resolution and enable the detection of multiple targets using tone-amplitude variations.
PHOTONIC INSTRUMENTATION ENGINEERING X
(2023)
Proceedings Paper
Engineering, Electrical & Electronic
Xun Li, Mustafa Mert Bayer, George Nikolaev Guentchev, Ozdal Boyraz
Summary: We have developed a free-space optical communication module for the NSF PAWR program that features auto-tracking capability with sub-microradian resolution over a +/- 6.5 degrees angle of arrival. This module is specifically designed for deployment in rural areas.
2022 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXHIBITION (OFC)
(2022)
Proceedings Paper
Engineering, Electrical & Electronic
Parinaz Sadri-Moshkenani, Mohammad Wahiduzzaman Khan, Md Shafiqul Islam, Dan Shi, Eric Montoya, Ilya Krivorotov, Nader Bagherzadeh, Ozdal Boyraz
Summary: An optoelectronic readout method based on the plasmon drag effect for reading the state of STT-RAM cells is proposed, which can achieve up to 29.6 Gbit/sec readout speed according to simulations.
2021 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
(2021)
Proceedings Paper
Optics
Md Shafiqul Islam, Imam Uz Zaman, Parinaz Sadri-Moshkenani, Mohammad Wahiduzzaman Khan, Ozdal Boyraz
Summary: This paper proposes a novel receiver system for free space optical communications that effectively reduces the impact of pointing errors. The system uses two metalenses and one conventional lens to focus beams of different incident angles onto a single detector, relaxing the strict requirements of aligning transmitter and receiver units. Through physical optics theory design and analysis, the system can collect wide-angle incident beams efficiently.
CURRENT DEVELOPMENTS IN LENS DESIGN AND OPTICAL ENGINEERING XXII
(2021)
Proceedings Paper
Engineering, Electrical & Electronic
George N. Guentchev, M. Mert Bayer, Xun Li, Ozdal Boyraz
Summary: This work presents the mechanical design and thermal analysis of a Multi-Tone Continuous Wave Lidar system utilizing phase-based detection on a 12U CubeSat platform, aiming to enable optical altimetry and velocimetry measurements for littoral ocean dynamics. The design includes vibration isolation to protect optical components, as well as thermal dissipation systems to manage heat generated by high power lasers for optimum operation.
CUBESATS AND SMALLSATS FOR REMOTE SENSING V
(2021)
