A5069974427- Photonic Crystal and Fiber Optics
- Advanced Fiber Optic Sensors
- Advanced Fiber Laser Technologies
- Photonic and Optical Devices
- Engineering and Information Technology
- Spectroscopy and Laser Applications
- Optical Network Technologies
- Distributed and Parallel Computing Systems
- Cloud Computing and Resource Management
- Geochemistry and Geologic Mapping
- Image Enhancement Techniques
- Spectroscopy and Chemometric Analyses
- Advanced Chemical Sensor Technologies
- Advanced Data Storage Technologies
- Mineral Processing and Grinding
- Analytical Chemistry and Sensors
- Embedded Systems Design Techniques
- Parallel Computing and Optimization Techniques
- Tuberculosis Research and Epidemiology
- Optical Imaging and Spectroscopy Techniques
- Remote Sensing in Agriculture
- Nonlinear Optical Materials Studies
- Bluetooth and Wireless Communication Technologies
- Biosensors and Analytical Detection
- Force Microscopy Techniques and Applications
Universidad Nacional de Itapúa
2023
University of Michigan
2016-2020
Michigan United
2019-2020
Leidos (United States)
2020
University of Information Science
2013-2016
Australian Resources Research Centre
2016
Mineral Resources
2016
Commonwealth Scientific and Industrial Research Organisation
2016
General Dynamics (United States)
2005
University of Puerto Rico at Río Piedras
2004
We demonstrate an all-fiber supercontinuum source that generates a continuous spectrum from 1.6 μm to >11 with 417 mW on-time average power at 33% duty cycle. By utilizing master oscillator amplifier pump three amplification stages and concatenating solid core ZBLAN, arsenic sulfide, selenide fibers, we shift 1550 nm light ∼4.5 μm, ∼6.5 respectively. With 69 past 7.5 this provides both high broad spectral expansion, while outputting single fundamental mode.
ABSTRACTAustralian Geological Surveys are the custodians of a major national asset in form historically drilled and archived drill cores top few kilometres continent acquired by government agencies companies over many decades. The AuScope National Virtual Core Library (NVCL) component Earth Model comprises geological/rock samples, technology, people database/delivery infrastructure located six nationally distributed nodes is aimed at extracting additional value from this asset. technology...
We generate a supercontinuum (SC) spectrum ranging from 1.57 μm to 12 (20 dB bandwidth) with soft glass fiber cascade consisting of ZrF4-BaF2-LaF3-AlF3-NaF fiber, As2S3 and As2Se3 pumped by nanosecond thulium master oscillator power amplifier system. The highest on-time average generated is 417 mW at 33% duty cycle. observe near-diffraction-limit beam quality across the wavelength range 3 μm, even though multimode below μm. Our study also shows that parameters such as numerical aperture,...
We demonstrate a prototype mid-wave to long-wave infrared supercontinuum, Fourier transform sensor capable of chemical detection and identification at 3.6 m. The system utilizes 150 mW supercontinuum source with continuous spectrum from 1.6-11 μm an M <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> <; 1.4, 3 λ 11 μm, provide high brightness the target. measure scattering spectra powder particles on soda-lime glass down concentration 7.4...
We measure glucose solutions down to 1mg/dl based on the C-H combinational bands using a short-wave infrared super-continuum (SWIR-SC) laser. estimate that SWIR-SC increases measurement system SNR by >50x compared with lamps.
We demonstrate infrared spectroscopy systems that are capable of predicting acrylamide level in powders potato fries based on all-fiber high power supercontinuum (SC) lasers both the short-wave and mid-wave spectral range. Two SC used this study cover wavelength range 670nm to 2500nm 1600nm 11000nm, respectively. use system measure 32 French fry samples with different concentrations calibrated by gas chromatography-mass (GCMS). Our predicted show a good linear correlation measured...
All-fiber integrated super-continuum (SC) sources are described based on a platform architecture that can operate in the visible, near-infrared, short-wave infrared, mid-wave infrared and long-wave with demonstrated SC wavelengths ranging from 0.47 to 12 μm. Modulation instability initiated generation leads simple source no moving parts uses o_-the-shelf components mature telecommunications fiber optics industry. The resulting light basically cascade of fibers pumped by fiber-pigtailed laser...
We demonstrate a prototype sensor capable of measuring specular and diffuse reflectance spectra from samples 3.6 m away. The utilizes mid-wave to long-wave infrared supercontinuum light coupled into rotational FTIR spectrometer actively probe remote samples. measure the acetaminophen at 41.77 μg/cm<sup>2</sup> on glass substrate find that modified Bobbert-Vlieger analysis can estimate effects particle size distribution return spectra. measured stand-off particulate measurements depends...
Hydrocarbon based thermoplastics used in 3D printing can be sintered using a supercontinuum laser operating between 2-2.5μm. We sinter 11 different materials and fabricate rods with strengths up to 5x of that from CO2 lasers.
We demonstrate an all-fiber super-continuum (SC) laser based near infrared (1160nm to 2350nm) spectroscopy system that is capable of measuring protein (gluten) levels in wheat flour, at a stand-off distance. show reflectance spectrum between 1160nm and 2350nm can be used measure flour. The measured concentration with the partial least square regression shows good linear correlation (R >0.95) level by Dumas method standard error variance down 0.5 percent. Our could for non-destructive,...
We measure and simulate the diffuse scattering return from sparse particles of RDX, caffeine, acetaminophen deposited on substrates consisting smooth aluminum, silicon, glass at a distance 3.6 m using mid-infrared supercontinuum FTIR sensor. The measured spectra show that molecular fingerprint regime contains reflectance peaks can be used for chemical identification mid-wave infrared provides information target orientation. Furthermore, we demonstrate obtained our sensor accurately simulated...
For monitoring of concussion, brain function, organ condition and other medical applications, what is needed a non-invasive method tissue metabolism. MRI-based functional imaging technology detects changes in blood oxygenation, correlate neural activity, thus may offer prediction prognosis cases concussion cerebral traumas. Yet, potential relationships between perturbations to metabolism patient outcomes cannot be effectively exploited clinically because we lack practical, low-cost, means...
We experimentally measure the scattered reflectance of particles deposited on smooth substrates with a mid-wave to long-wave supercontinuum source and FTIR based sensor at 3.6 m. scattering return from sparse 1,3,5-Trinitroperhydro-1,3,5-triazine, caffeine, acetaminophen aluminum, silicon, glass substrates. also mono-disperse 5.4, 10.8, 19.4 μm diameter polystyrene spheres aluminum. demonstrate that spectra obtained using our can be accurately simulated Bobbert–Vlieger model, non-spherical...
This research has carried out the analysis of efficiency natural light as an interior lighting system through fiber optic transmission in Paraguay a pioneering alternative to energy demand.For its analysis, construction flat concentrator shape truncated pyramid was out, with metal support equipped rotational movements both x and y planes such way manually track sun.At concentration point, placed for 6mm diameter 10-meter-long optical that transports concentrated from one end other.This...