Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Agustin I. Ifarraguerri"'
Autor:
Robert Bedford, Ricky Gibson, Ramon A. Martinez, Michael J. Freeman, Agustin I. Ifarraguerri, Leland Pierce, Christian Noah Peter, Kaiwen Guo, Lukasz Maksymiuk, Tianqu Zhai, Mohammed N. Islam, Jennifer M. Reed, Brian A. Gorin, Fred L. Terry
Publikováno v:
Journal of Lightwave Technology. 37:3626-3636
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 a 150 mW supercontinuum source with a continuous spectrum from 1.6–11
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4cebf1601853f1915ac0b52b5447d64
https://doi.org/10.1109/jlt.2019.2918532
https://doi.org/10.1109/jlt.2019.2918532
Autor:
Kaiwen Guo, Mohammed N. Islam, Agustin I. Ifarraguerri, Tianqu Zhai, Fred L. Terry, Ramon A. Martinez
Publikováno v:
Optical Biopsy XVIII: Toward Real-Time Spectroscopic Imaging and Diagnosis.
We measure and simulate the diffuse scattering return from sparse particles of RDX, caffeine, and acetaminophen deposited on substrates consisting of smooth aluminum, silicon, and glass substrates at a distance of 3.6 m using a mid-infrared supercont
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c040b4785063ff33da0a9af18482d9d2
https://doi.org/10.1117/12.2550334
https://doi.org/10.1117/12.2550334
Autor:
Ramon A. Martinez, Robert L. Maynard, Kaiwen Guo, Fred L. Terry, Lukasz Maksymiuk, Mohammed N. Islam, Tianqu Zhai, Michael J. Freeman, Carl A. Dewilde, Agustin I. Ifarraguerri
Publikováno v:
Fiber Lasers XVI: Technology and Systems.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15fa36b8920975815b20d10b157b6717
https://doi.org/10.1117/12.2513908
https://doi.org/10.1117/12.2513908
Autor:
Kaiwen Guo, Ramon A. Martinez, Tianqu Zhai, Fred L. Terry, Agustin I. Ifarraguerri, Mohammed N. Islam
Publikováno v:
Journal of Applied Physics. 127:243103
We experimentally measure the scattered reflectance of particles deposited on smooth substrates with a mid-wave to long-wave supercontinuum source and a FTIR based sensor at 3.6 m. We measure the scattering return from sparse particles of 1,3,5-Trini
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5d1fad10ff90852ede801311d9893a7
https://doi.org/10.1063/5.0009463
https://doi.org/10.1063/5.0009463
Autor:
Fred L. Terry, Robert Bedford, Kaiwen Guo, Robert L. Maynard, Ramon A. Martinez, Michael J. Freeman, Agustin I. Ifarraguerri, Francois Chenard, Brian Janiszewski, Mohammed N. Islam, Genevieve Plant, Oseas Alvarez, Ricky Gibson
Publikováno v:
Optics letters. 43(2)
We demonstrate an all-fiber supercontinuum source that generates a continuous spectrum from 1.6 μm to >11 μm with 417 mW on-time average power at 33% duty cycle. By utilizing a master oscillator power amplifier pump with three amplification stages
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4317f46d48aed39a42484fc2aecac2c6
https://pubmed.ncbi.nlm.nih.gov/29328264
https://pubmed.ncbi.nlm.nih.gov/29328264
Autor:
Kevin Ke, Frank Baxley, Mohammed N. Islam, Hyatt B. Baker, Michael J. Freeman, Lauren M. Peterson, Michael A. Rucci, James D. Leonard, Agustin I. Ifarraguerri, Christopher Bailey, Anthony Absi, Michael Wager
Publikováno v:
Applied optics. 55(7)
Field tests have been conducted of a broadband illuminator for active hyperspectral imaging (HSI) using a short-wave infrared supercontinuum laser (SWIR-SCL). We demonstrated irradiance comparable to the sun for two-way measurements at a 1.4 km dista
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6320d923f66fe73f695a32b239cf1e87
https://pubmed.ncbi.nlm.nih.gov/26974617
https://pubmed.ncbi.nlm.nih.gov/26974617
Autor:
Agustin I. Ifarraguerri, M.W. Prairie
Publikováno v:
IEEE Geoscience and Remote Sensing Letters. 1:101-106
We present a new method for performing band selection experiments with spectral data. This method allows for the visual inspection and assessment of the experiment results, and includes a statistical significance test. The method follows a standard f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa6c6f58875a80259fe6eb5efb58f69a
https://doi.org/10.1109/lgrs.2003.822879
https://doi.org/10.1109/lgrs.2003.822879
Autor:
Chein-I Chang, Agustin I. Ifarraguerri
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 38:2529-2538
Principal components analysis (PCA) is effective at compressing information in multivariate data sets by computing orthogonal projections that maximize the amount of data variance. Unfortunately, information content in hyperspectral images does not a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::24c89c0304a06f01847925c1ec998ca7
https://doi.org/10.1109/36.885200
https://doi.org/10.1109/36.885200
Autor:
Agustin I. Ifarraguerri, Chein-I Chang
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 37:756-770
A new approach to multispectral and hyperspectral image analysis is presented. This method, called convex cone analysis (CCA), is based on the bet that some physical quantities such as radiance are nonnegative. The vectors formed by discrete radiance
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2212c3559623cb11afc178553e5c331
https://doi.org/10.1109/36.752192
https://doi.org/10.1109/36.752192
Autor:
Vinay V. Alexander, James D. Leonard, Gregory J. Boer, Michael J. Freeman, Zhennan Shi, Jerome A. Zadnik, G. Kalinchenko, Agustin I. Ifarraguerri, Kevin Ke, Anthony S. Szalkowski, Joseph Meola, Mohammed N. Islam, Anthony Absi
Publikováno v:
Applied optics. 52(27)
Field trial results of a 5 W all-fiber broadband supercontinuum (SC) laser covering the short-wave infrared (SWIR) wavelength bands from ∼1.55 to 2.35 μm are presented. The SC laser is kept on a 12 story tower at the Wright Patterson Air Force Bas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::baba1c3bcbb037cd795f423739fd089c
https://pubmed.ncbi.nlm.nih.gov/24085183
https://pubmed.ncbi.nlm.nih.gov/24085183