Search Results - "Subbaraman, Harish"
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A Review of Inkjet Printed Graphene and Carbon Nanotubes Based Gas Sensors
Published in Sensors (Basel, Switzerland) (02-10-2020)“…Graphene and carbon nanotube (CNT)-based gas/vapor sensors have gained much traction for numerous applications over the last decade due to their excellent…”
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Active Compensation of Radiation Effects on Optical Fibers for Sensing Applications
Published in Sensors (Basel, Switzerland) (08-12-2021)“…Neutron and gamma irradiation is known to compact silica, resulting in macroscopic changes in refractive index (RI) and geometric structure. The change in RI…”
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Numerical Analysis of Radiation Effects on Fiber Optic Sensors
Published in Sensors (Basel, Switzerland) (15-06-2021)“…Optical fiber sensors (OFS) are a potential candidate for monitoring physical parameters in nuclear environments. However, under an irradiation field the…”
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Inkjet Printing of High Performance Transistors with Micron Order Chemically Set Gaps
Published in Scientific reports (26-04-2017)“…This paper reports a 100% inkjet printed transistor with a short channel of approximately 1 µm with an operating speed up to 18.21 GHz. Printed electronics are…”
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Recent Advances in Graphene-Enabled Silicon-Based High-Speed Optoelectronic Devices—A Review
Published in Photonics (01-12-2023)“…Silicon (Si) photonics has emerged as a prominent technology for meeting the escalating requirements of high-speed data transmission in optical communication…”
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Polymer-Based Hybrid-Integrated Photonic Devices for Silicon On-Chip Modulation and Board-Level Optical Interconnects
Published in IEEE journal of selected topics in quantum electronics (01-11-2013)“…The accelerating increase in information traffic demands the expansion of optical access network systems that require the cost reduction of optical and…”
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Complementary metal–oxide–semiconductor compatible high efficiency subwavelength grating couplers for silicon integrated photonics
Published in Applied physics letters (16-07-2012)“…We demonstrate a through-etched grating coupler based on subwavelength nanostructure. The grating consists of arrays of 80 nm × 343 nm rectangular air holes,…”
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Integrated Photonic Electromagnetic Field Sensor Based on Broadband Bowtie Antenna Coupled Silicon Organic Hybrid Modulator
Published in Journal of lightwave technology (15-10-2014)“…We present the design, fabrication and characterization of a compact and highly sensitive integrated photonic electromagnetic field sensor based on a…”
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High Performance Optical Modulator Based on Electro-Optic Polymer Filled Silicon Slot Photonic Crystal Waveguide
Published in Journal of lightwave technology (15-06-2016)“…Silicon-organic hybrid integrated devices have emerging applications ranging from high-speed optical interconnects to photonic electromagnetic-field sensors…”
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Chalcogenide Glass-Capped Fiber-Optic Sensor for Real-Time Temperature Monitoring in Extreme Environments
Published in Sensors (Basel, Switzerland) (25-02-2021)“…We demonstrate a novel chalcogenide glass (ChG)-capped optical fiber temperature sensor capable of operating within harsh environment. The sensor architecture…”
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11
Polarization filter realization using low-loss hollow-core anti-resonant fiber in THz regime
Published in Results in physics (01-06-2020)“…•A simple four ring Zeonex based hollow-core anti-resonant fiber (HC-ARF) for polarization filtering (PF) application in THz spectral range is proposed for the…”
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12
A Highly Sensitive, Polarization Maintaining Photonic Crystal Fiber Sensor Operating in the THz Regime
Published in Photonics (01-12-2018)“…In this paper, a high sensitivity, polarization preserving photonic crystal fiber (PCF), based on circular air holes for sensing in the terahertz (THz) band,…”
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Experimental validation of a reflective long period grating design methodology
Published in Results in optics (01-05-2022)“…In this work, we present an experimental demonstration of our previously published modeling work on reflective long period grating (LPG). To provide the…”
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14
Phase change in Ge–Se chalcogenide glasses and its implications on optical temperature-sensing devices
Published in Journal of materials science. Materials in electronics (01-07-2020)“…Reversible amorphous to crystalline phase transition introduces high contrast in the optical and electrical properties of chalcogenide glasses. This effect can…”
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15
Aerosol jet printing of piezoelectric surface acoustic wave thermometer
Published in Microsystems & nanoengineering (04-05-2023)“…Surface acoustic wave (SAW) devices are a subclass of micro-electromechanical systems (MEMS) that generate an acoustic emission when electrically stimulated…”
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On the role of evanescent modes and group index tapering in slow light photonic crystal waveguide coupling efficiency
Published in Applied physics letters (17-01-2011)“…We investigate effects of different mechanisms on coupling efficiency between strip waveguides and the slow light mode in photonic crystal waveguides (PCWs)…”
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Silicon nanomembrane based photonic crystal waveguide array for wavelength-tunable true-time-delay lines
Published in Applied physics letters (30-07-2012)“…We demonstrate a four-channel on-chip true-time-delay module based on a photonic crystal waveguide array. Using the photonic crystal taper to minimize the…”
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18
Multijet Gold Nanoparticle Inks for Additive Manufacturing of Printed and Wearable Electronics
Published in ACS Materials Au (10-01-2024)“…Conductive and biofriendly gold nanomaterial inks are highly desirable for printed electronics, biosensors, wearable electronics, and electrochemical sensor…”
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Large optical spectral range dispersion engineered silicon-based photonic crystal waveguide modulator
Published in Optics express (21-05-2012)“…We present a dispersion engineered slow light silicon-based photonic crystal waveguide PIN modulator. Low-dispersion slow light transmission over 18 nm…”
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Silicon-Based Hybrid Integrated Photonic Chip for K band Electromagnetic Wave Sensing
Published in Journal of lightwave technology (01-05-2018)“…In this paper, we experimentally demonstrate a highly sensitive on-chip photonic electromagnetic wave sensor operating at 14.1 GHz with a 3 dB bandwidth of…”
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