Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Devulapalli V. G. L. N. Rao"'
Publikováno v:
Optics and Spectroscopy. 111:208-214
Linearly polarized light beam can rotate the trans-azobenzene molecules into cis-form resulting in inducing photoanisotropy. This property is used to control the transmission of nanosecond and picosecond laser pulses and also for holographic data sto
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::281b29b42de6358663d9a2fbd6fe0899
https://doi.org/10.1134/s0030400x11080315
https://doi.org/10.1134/s0030400x11080315
Publikováno v:
Optics Communications. 283:438-441
We studied the linear and nonlinear optical properties of halloysite nanotubes using Z-scan technique. Halloysite is alumina silicate clay rolled into 50 nm diameter hollow cylinders, where the silica layer is at the outer surface of the tube and alu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::adabc897841fceff373ac394a66eafe4
https://doi.org/10.1016/j.optcom.2009.10.001
https://doi.org/10.1016/j.optcom.2009.10.001
Publikováno v:
Optics Communications. 282:2259-2262
In this paper we demonstrated enhancement of photoinduced polarization rotation for improved transmission of laser light at low input intensities through a crossed polarized system. It is achieved by utilizing two azobenzene doped polymer thin films
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4c0d690197f3877516924c7196abd45
https://doi.org/10.1016/j.optcom.2009.02.057
https://doi.org/10.1016/j.optcom.2009.02.057
Publikováno v:
Molecular Crystals and Liquid Crystals. 446:273-294
Real-time medical image processing through nonlinear optical Fourier filtering and transient Fourier holography is demonstrated using bio-organic polymer films of Bacteriorhodopsin (bR). In nonlinear Fourier filtering, the photo-controlled light modu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cabccedf982a33371295eb7b4826d6ac
https://doi.org/10.1080/15421400500379756
https://doi.org/10.1080/15421400500379756
Autor:
Chandra S. Yelleswarapu, Devulapalli V. G. L. N. Rao, Pengfei Wu, Sriram G. Naraharisetty, Sri Rajasekhar Kothapalli
Publikováno v:
Academic Radiology. 12:708-721
Rationale and Objectives To exploit the spectral phase characteristics of digital or digitized mammograms for early detection of microcalcifications, shape, and sizes of suspected lesions and to demonstrate its use for training radiologists to discri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f6c06aac433704495c08211a440e268
https://doi.org/10.1016/j.acra.2004.09.017
https://doi.org/10.1016/j.acra.2004.09.017
Publikováno v:
Chemical Physics Letters. 400:506-510
New Retinal nano-ceramic materials with pillared hybrid micro-structures are fabricated for potential applications in optical holographic data storage. We observe that the Schiff bases have substantial effect on optical properties of Retinal nano-cer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5940b473f5bbb63ee11c8e329c94e605
https://doi.org/10.1016/j.cplett.2004.10.129
https://doi.org/10.1016/j.cplett.2004.10.129
Autor:
David Carnahan, J. Y. Lao, Z. P. Huang, Brian R. Kimball, Krzysztof Kempa, Zhifeng Ren, Wei Li, D. Steeves, M. Sennett, D. Z. Wang, Pengfei Wu, Michael Giersig, Jacob Rybczynski, Devulapalli V. G. L. N. Rao
Publikováno v:
Nano Letters. 3:13-18
We demonstrate here that large area periodic arrays of well-aligned carbon nanotubes can be fabricated inexpensively on Ni dots made by the process of self-assembly nanosphere lithography. These periodic arrays appear colorful due to their efficient
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::faa597d7aa8b96cd436fa31522134bf3
https://doi.org/10.1021/nl0258271
https://doi.org/10.1021/nl0258271
Autor:
Devulapalli V. G. L. N. Rao, Masato Nakashima, Barry S. DeCristofano, Appaji Panchangam, Brian R. Kimball, K. V. L. N. Sastry
Publikováno v:
Medical Physics. 28:22-27
Optical image processing techniques are inherently fast in view of parallel processing. A self-adaptive optical Fourier processing system using photoinduced dichroism in a bacteriorhodopsin film was experimentally demonstrated for medical image proce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::509321bb7281418363f7cfa6d25b3b61
https://doi.org/10.1118/1.1328079
https://doi.org/10.1118/1.1328079
Publikováno v:
SPIE Proceedings.
X-ray mammography is the current gold standard for breast cancer screening. Microcalcifications and other features which are helpful to the radiologist for early diagnostics are often buried in the noise generated by the surrounding dense tissue. So
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::975568f905d93d35f2d902b5fe5c6da3
https://doi.org/10.1117/12.2020227
https://doi.org/10.1117/12.2020227
Autor:
Masato Nakashima, Devulapalli V. G. L. N. Rao, Francisco J. Aranda, Joseph A. Akkara, Zhongping Chen, David L. Kaplan, D. Narayana Rao
Publikováno v:
Optics Communications. 127:193-199
We demonstrate an all-optical switch using molecular states in a bacteriorhodopsin (bR) thin film. All-optical logic gates are implemented with wild-type and chemically stabilized films of bacteriorhodopsin using a two-color backward degenerate four-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa7ec429b6fe89b77f2c979b044827b0
https://doi.org/10.1016/0030-4018(96)00180-0
https://doi.org/10.1016/0030-4018(96)00180-0