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An optical equivalent of the field-programmable gate array (FPGA) is of great interest to large-scale photonic integrated circuits. Previous programmable photonic devices relying on the weak, volatile thermo-optic or electro-optic effect…

Applied Physics · Physics 2020-01-28 Peipeng Xu , Jiajiu Zheng , Jonathan Doylend , Arka Majumdar

Semiconductor light emitters compatible with standard Si integration technology (SIT) are of particular interest for overcoming limitations in the operating speed of microelectronic devices 1-3. Light sources based on group-IV elements…

Mesoscale and Nanoscale Physics · Physics 2016-03-24 M. Grydlik , F. Hackl , H. Groiss , M. Glaser , A. Halilovic , T. Fromherz , W. Jantsch , F. Schäffler , M. Brehm

Modern advanced photonic integrated circuits require dense integration of high-speed electro-optic functional elements on a compact chip that consumes only moderate power. Energy efficiency, operation speed, and device dimension are thus…

Applied Physics · Physics 2020-09-09 Mingxiao Li , Jingwei Ling , Yang He , Usman A. Javid , Shixin Xue , Qiang Lin

Optomechanical accelerometers promise quantum-limited readout, high detection bandwidth, self-calibration, and radiation pressure stabilization. We present a simple, scalable platform that enables these benefits with nano-$g$ sensitivity at…

Mesoscale and Nanoscale Physics · Physics 2022-09-01 Mitul Dey Chowdhury , Aman R. Agrawal , Dalziel J. Wilson

We demonstrate a kind of grating coupler that generates high quality flat-top beam with a small beamwidth from photonic integrated circuits into free-space. The grating coupler is designed on a silicon-on-insulator wafer with a 220 nm-thick…

Time of Flight Positron Emission Tomography scanner based on plastic scintillators is being developed at the Jagiellonian University by the J-PET collaboration. The main challenge of the conducted research lies in the elaboration of a…

Advancing fault-tolerant quantum computing and fundamental science necessitates quantum-limited amplifiers with near-ideal quantum efficiency and multiplexing capability. However, existing solutions typically achieve one at the expense of…

We show efficient electro-optic modulation in a subwavelength gap-plasmon waveguide (GPW) formed by an electro-optic polymer with metal coatings. The proposed device is studied in the attenuated total reflection and end-fire configurations.…

Optics · Physics 2010-03-03 Subimal Deb , K. Sarat Kumar , P. Anantha Lakshmi , S. Dutta Gupta

We develop a custom Bit Error Rate test bench based on Altera's Stratix II GX transceiver signal integrity development kit, demonstrate it on point-to-point serial optical link with data rate up to 5 Gbps, and compare it with commercial…

Instrumentation and Detectors · Physics 2024-01-30 Annie C. Xiang , Tingting Cao , Datao Gong , Suen Hou , Chonghan Liu , Tiankuan Liu , Da-Shung Su , Ping-Kun Teng , Jingbo Ye

This paper describes the characterization of crystal matrices and silicon photomultiplier arrays for a novel Positron Emission Tomography (PET) detector, namely the external plate of the EndoTOFPET-US system. The EndoTOFPET-US collaboration…

For glucose electrochemical sensors, a comprehensive electronics interface is designed and constructed in 0.18 um, CMOS process technology, and 1.5 V supply voltage. This interface includes a programmable readout amplifier and bandgap…

Systems and Control · Electrical Eng. & Systems 2023-05-23 Riyaz Ahmad , Amit M. Joshi , Dharmendra Boolchandani

Monte Carlo simulation plays an important role in the study of time of flight (TOF) positron emission tomography (PET) prototype. As it can incorporate accurate physical modeling of scintillation detection process, from scintillation light…

Instrumentation and Detectors · Physics 2013-09-17 Ze Chen , Zheng-Guo Hu , Jin-Da Chen , Xiu-Ling Zhang , Zhi-Yu Sun , Wen-Xue Huang , Jian-Song Wang , Zhong-Yan Guo , Guo-Qing Xiao

Graphene integrated photonics provides several advantages over conventional Si photonics. Single layer graphene (SLG) enables fast, broadband, and energy-efficient electro-optic modulators, optical switches and photodetectors (GPDs), and is…

We report an electrically actuated, low-loss non-volatile optical switch based on the phase-change material (PCM) Sb2Se3 integrated on a silicon nitride (Si3N4) platform. The device is fabricated using an 8-inch wafer-scale process flow,…

A software-defined 2-bit Programmable Transmit Metamaterial (PTM) array surface with beam steering capabilities is proposed for indoor dynamic Wireless Power Transfer (DWPT) applications. The novel metamaterial unit cell structure is…

Signal Processing · Electrical Eng. & Systems 2024-08-29 Eistiak Ahamed , Rasool Keshavarz , Daniel Franklin , Negin Shariati

Proton radiography is used for advanced hydrotesting as a new type radiography technology due to its powerful penetration capability and high detection efficiency. A new proton radiography terminal will be developed to radiograph static…

Accelerator Physics · Physics 2015-01-28 Yan Yan , Li-Na Sheng , Zhi-Wu Huang , Jie Wang , Ze-En Yao , Jun-Run Wang , Zheng Wei , Jian-Cheng Yang , You-Jin Yuan

Phase change materials (PCMs) have long been used as a storage medium in rewritable compact disk and later in random access memory. In recent years, the integration of PCMs with nanophotonic structures has introduced a new paradigm for…

We describe the construction and characterization of the 280 GHz bolometric focal plane units (FPUs) to be deployed on the second flight of the balloon-borne SPIDER instrument. These FPUs are vital to SPIDER's primary science goal of…

Printed polymer electronics has held for long the promise of revolutionizing technology by delivering distributed, flexible, lightweight and cost-effective applications for wearables, healthcare, diagnostic, automation and portable devices.…