Zobrazeno 1 - 10
of 35
pro vyhledávání: '"John J. Pouch"'
Autor:
Pushkar Pandit, John J. Pouch, Nathaniel C. Wilson, Tony D. Roberts, Ian R. Nemitz, Skyler Baugher, Sarah A. Tedder, Bertram Floyd, John D. Lekki, Evan J. Katz, Roger Tokars, Brian E. Vyhnalek
Publikováno v:
Broadband Access Communication Technologies XII.
Entangled photon pairs are created by a system consisting of a 1064 nm pump diode laser that is fiber coupled to a high generation rate photon pair source. The source is a dual element periodically poled potassium titanyl phosphate (KTP) waveguide th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f13078c94d2a0fe2d982a991f68fc344
https://doi.org/10.1117/12.2288474
https://doi.org/10.1117/12.2288474
Autor:
Felix A. Miranda, Thomas M. Wallett, J.L. Jordan, Denise S. Ponchak, Calvin T. Ramos, John J. Pouch, Gene Fujikawa
Publikováno v:
Journal of Aerospace Engineering. 26:377-394
Over the last several decades, the National Aeronautics and Space Administration (NASA) Glenn Research Center (GRC), formerly Lewis Research Center (LeRC) has performed research and technology development of aeronautic- and space-based communications
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f715642547234cd71e02f261a31a79c2
https://doi.org/10.1061/(asce)as.1943-5525.0000316
https://doi.org/10.1061/(asce)as.1943-5525.0000316
Autor:
Dalton W. Chaffee, Bertram Floyd, Alexander J. Lind, John Cavin, John Lekki, Roger Tokars, Jeffrey D. Wilson, Tony D. Roberts, Spencer R. Helmick, John J. Pouch, Philip Battle, Nathaniel C. Wilson
Publikováno v:
SPIE Proceedings.
A high generation rate photon-pair source using a dual element periodically-poled potassium titanyl phosphate (PP KTP) waveguide is described. The fully integrated photon-pair source consists of a 1064-nm pump diode laser, fiber-coupled to a dual ele
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4fb5ab4bb540b1bf43972c058d93ecf
https://doi.org/10.1117/12.2237742
https://doi.org/10.1117/12.2237742
Publikováno v:
Materials Science Forum. :645-656
Recent work on the properties of diamondlike carbon films and their dependence on preparation conditions are reviewed. The results of the study indicate that plasma deposition enables one to deposit a variety of amorphous hydrogenated carbon (a-C:H )
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22bf6e41507c1ddc9f73f4c551a25582
https://doi.org/10.4028/www.scientific.net/msf.52-53.645
https://doi.org/10.4028/www.scientific.net/msf.52-53.645
Autor:
Paul G. Snyder, N. J. Ianno, S. Orzeszko, Samuel A. Alterovitz, John A. Woollam, David C. Ingram, R. L. C. Wu, Bhola N. De, John J. Pouch
Publikováno v:
Materials Science Forum. :577-608
The use of diamondlike carbon (DLC) as a protective coating in harsh environments is addressed. There are three topics presented. The first is a description of the preparation of DLC on seven different infrared transmitting materials, and the possibi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7eacbb5262ce5ff0b10389b720c9f788
https://doi.org/10.4028/www.scientific.net/msf.52-53.577
https://doi.org/10.4028/www.scientific.net/msf.52-53.577
Publikováno v:
SPIE Proceedings.
Gruneisen (sup 1-3), has shown that small, light weight, liquid crystal based devices can correct for the optical distortion caused by an imperfect primary mirror in a telescope and has discussed the efficiency of this correction. In this paper we ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3eb1f806fd54fa3cb1e50aff1e60974
https://doi.org/10.1117/12.626284
https://doi.org/10.1117/12.626284
Autor:
Paul F. McManamon, John J. Pouch, Felix A. Miranda, Xinghua Wang, James Anderson, Philip J. Bos, Bin Wang
Publikováno v:
SPIE Proceedings.
The effect of fringing electric fields in a liquid crystal (LC) Optical Phased Array (OPA), also referred to as a spatial light modulator (SLM), is a governing factor that determines the diffraction efficiency (DE) of the LC OPA for high resolution s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8b54787e17189db8af7675c5f7e7962
https://doi.org/10.1117/12.559283
https://doi.org/10.1117/12.559283
Autor:
Philip J. Bos, John J. Pouch, Bin Wang, Paul F. McManamon, Felix A. Miranda, Xinghua Wang, James E. Anderson
Publikováno v:
Frontiers in Optics 2004/Laser Science XXII/Diffractive Optics and Micro-Optics/Optical Fabrication and Testing.
Modeling of Liquid Crystal Optical Phased Array extendable to cases where the size of array element is close to the wavelength of light is shown. Fringing field in the OPA is strongly reduced to achieve ±7.4o continuous beam steering for 1550nm wave
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3b3473d963c4ab3d53362e647626fc1
https://doi.org/10.1364/fio.2004.fwh24
https://doi.org/10.1364/fio.2004.fwh24
Autor:
Philip J. Bos, Bin Wang, Michael R. Fisch, Vassili Sergan, John J. Pouch, James Anderson, Felix A. Miranda, Xinghua Wang
Publikováno v:
SPIE Proceedings.
A spatial light modulator, which is capable of high-resolution wavefront compensation and high accuracy beam steering, has been demonstrated using a Liquid Crystal On Silicon (LCOS) microdisplay with 1024×768 XGA resolution. When the device is used
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a3f2f499d3523b57a24d2181094f209
https://doi.org/10.1117/12.511504
https://doi.org/10.1117/12.511504
Publikováno v:
SPIE Proceedings.
Dynamic holography has been demonstrated as a method for correcting aberrations in space deployable optics, and can also be used to achieve high-resolution beam steering in the same environment. In this paper, we consider some of the factors affectin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db60d6a054423a96cdad1e564e3bec5f
https://doi.org/10.1117/12.453891
https://doi.org/10.1117/12.453891