Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Austin W. Steinforth"'
Publikováno v:
APL Photonics, Vol 7, Iss 1, Pp 016104-016104-11 (2022)
A longstanding barrier to laser imaging with high spatial and temporal resolution is speckle, the granular interference pattern arising from the coherent interaction of laser radiation with the topography of an illuminated surface. Over the past five
Externí odkaz:
https://doaj.org/article/e068264df61c49d18175db664c8577f1
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-8 (2018)
Although fractal optical patterns have been realized previously, the direct generation of fractal modes from a laser has proven challenging. Here, Rivera et al. modify an optical cavity with a microsphere array to produce fractal laser modes and prob
Externí odkaz:
https://doaj.org/article/d6e93fd29b2e40b2beea4a07404893de
Autor:
Jinhong Kim, Andrey E. Mironov, Yin Huang, J. Gary Eden, Dane J. Sievers, Austin W. Steinforth
Publikováno v:
Nanoscale. 12:16796-16804
Precision photoablation of bulk polymers or films with incoherent vacuum ultraviolet (VUV) radiation from flat, microplasma array-powered lamps has led to the realization of a photolithographic process in which an acrylic, polycarbonate, or other pol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a8ff786a0956dea3bdd83a07b2027b6
https://doi.org/10.1039/d0nr04142d
https://doi.org/10.1039/d0nr04142d
Autor:
Jinhong Kim, Andrey E. Mironov, Austin W. Steinforth, Sung-Jin Park, Dane J. Sievers, James Gary Eden, Sehyun Park
Publikováno v:
Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XIV.
Complex 3D structures having lateral and depth resolutions of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5fc890f55055a31940d3db927553440
https://doi.org/10.1117/12.2583254
https://doi.org/10.1117/12.2583254
Autor:
Austin W. Steinforth, J. Gary Eden
Publikováno v:
Frontiers in Optics + Laser Science 2021.
Higher-order fractal modes of laser resonators are demonstrated experimentally for the first time. Simulations characterize the fractal behavior of the lowest-loss and higher-order modes of these Fabry-Pérot cavities containing microsphere arrays.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b62b4b4f05c1713198e3320c33550ac
https://doi.org/10.1364/fio.2021.fw5c.3
https://doi.org/10.1364/fio.2021.fw5c.3
Autor:
J. Gary Eden, Austin W. Steinforth
Publikováno v:
2020 IEEE Research and Applications of Photonics in Defense Conference (RAPID).
Incoherent microlaser arrays producing 11 mJ pulses with 5 ns duration were developed as light sources for speckle-free imaging. Imaging targets with speeds up to 300 m/s was achieved without motion blur. Additionally, this light source is shown to b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bcf6087afc430f220591fa124a489caa
https://doi.org/10.1109/rapid49481.2020.9195669
https://doi.org/10.1109/rapid49481.2020.9195669
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-8 (2018)
Nature Communications
Nature Communications
Fractals are ubiquitous in nature, and prominent examples include snowflakes and neurons. Although it has long been known that intricate optical fractal patterns can be realized with components such as gratings and reflecting spheres, generating frac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2bc786909124c80c15c4ff3124fd1daa
http://link.springer.com/article/10.1038/s41467-018-04945-8
http://link.springer.com/article/10.1038/s41467-018-04945-8
Autor:
J. Gary Eden, Austin W. Steinforth
Publikováno v:
Imaging and Applied Optics 2019 (COSI, IS, MATH, pcAOP).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::88e774dfd5896149a9145ebad8a3e51e
https://doi.org/10.1364/isa.2019.iw3b.2
https://doi.org/10.1364/isa.2019.iw3b.2
Publikováno v:
Conference on Lasers and Electro-Optics.
Microlens-stabilized laser arrays were constructed using solid-state and liquid gain media. Arrays comprised of more than 1, 200 beams illuminated motile biological specimens, producing speckle-free video with 15 nanosecond exposure per frame.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0777a6d8c30528ef66f6b5a283231d73
https://doi.org/10.1364/cleo_at.2018.atu4j.3
https://doi.org/10.1364/cleo_at.2018.atu4j.3
Publikováno v:
Imaging and Applied Optics 2018 (3D, AO, AIO, COSI, DH, IS, LACSEA, LS&C, MATH, pcAOP).
A novel light source comprising as many as 4,000 independent lasers has been developed for speckle-free illumination. Visible-light and near-infrared imaging with exposure time as short as five nanoseconds has been demonstrated.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1db45c54d4ea8112ee5eac370728804e
https://doi.org/10.1364/isa.2018.itu2b.5
https://doi.org/10.1364/isa.2018.itu2b.5