Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Vinay V. Alexander"'
Autor:
Hitinder S. Gurm, Vinay V. Alexander, Kim Walacavage, Mohammed N. Islam, Amber Yanovich, Zhennan Shi, Fariha Iftekher, Gail Rising, Michael J. Welsh
Publikováno v:
Lasers in Surgery and Medicine. 46:689-702
Background and Objective Renal denervation has recently become of great interest as a potential treatment for resistant hypertension. Denervation techniques using radio frequency (RF) or ultrasound energy sources have already been explored in literat
Autor:
Manickam Neelakandan, Allan Chan, Vinay V. Alexander, Malay Kumar, Fred L. Terry, Chenan Xia, Ojas P. Kulkarni, Michael J. Freeman, Kevin Ke, Michael J. Welsh, Mohammed N. Islam
Publikováno v:
Optical Fiber Technology. 18:349-374
High average power, all-fiber integrated, broadband supercontinuum (SC) sources are demonstrated. Architecture for SC generation using amplified picosecond/nanosecond laser diode (LD) pulses followed by modulation instability (MI) induced pulse break
Autor:
Bertram Pitt, Vinay V. Alexander, Jeffrey S. Orringer, Zhao Xu, Michael J. Freeman, Kevin Ke, Mohammed N. Islam, Michael J. Welsh
Publikováno v:
Lasers in Surgery and Medicine. 43:470-480
Background and Objectives Wavelengths near ∼1,720 nm are of interest for targeting fat/lipid-rich tissues due to the high absorption coefficient of human fat and low water scattering and absorption. In this study, a 1,708 nm laser was built and sho
Autor:
Vinay V, Alexander, Zhennan, Shi, Fariha, Iftekher, Michael J, Welsh, Hitinder S, Gurm, Gail, Rising, Amber, Yanovich, Kim, Walacavage, Mohammed N, Islam
Publikováno v:
Lasers in surgery and medicine. 46(9)
Renal denervation has recently become of great interest as a potential treatment for resistant hypertension. Denervation techniques using radio frequency (RF) or ultrasound energy sources have already been explored in literature. In this study, we in
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
Autor:
Joseph Meola, James D. Leonard, Anthony Absi, Agustin I. Ifarraguerri, Mohammed N. Islam, Vinay V. Alexander, Jerome A. Zadnik
Publikováno v:
SPIE Proceedings.
A fundamental limitation of current visible through shortwave infrared hyperspectral imaging systems is the dependence on solar illumination. This reliance limits the operability of such systems to small windows during which the sun provides enough s
Autor:
Vinay V, Alexander, Kevin, Ke, Zhao, Xu, Mohammed N, Islam, Michael J, Freeman, Bertram, Pitt, Michael J, Welsh, Jeffrey S, Orringer
Publikováno v:
Lasers in surgery and medicine. 43(6)
Wavelengths near ∼1,720 nm are of interest for targeting fat/lipid-rich tissues due to the high absorption coefficient of human fat and low water scattering and absorption. In this study, a 1,708 nm laser was built and shown to selectively target f
Autor:
Ojas P. Kulkarni, Malay Kumar, Michael J. Freeman, Fred L. Terry, Mohammed N. Islam, Vinay V. Alexander
Publikováno v:
CLEO:2011 - Laser Applications to Photonic Applications.
We demonstrate supercontinuum generation beyond 4.5 μm by first shifting 1.55 μm laser-diode pulses to ∼2 μm in standard single-mode fiber followed by amplification using Tm-doped amplifier and subsequent coupling to ∼7 m ZBLAN fiber.
Publikováno v:
Conference on Lasers and Electro-Optics 2010.
We measure the RMS roughness of crankshaft journals from 0.05–0.13microns at a 45degree angle of incidence and 70cm standoff distance. The system is used to detect and sort journals not polished to specifications.
Autor:
Douglas Davidson, Malay Kumar, Mohammed N. Islam, Chenan Xia, Carl C. Aleksoff, Vinay V. Alexander, Xiuquan Ma, Fred L. Terry, Alex Klooster
Publikováno v:
Optics express. 16(9)
Supercontinuum (SC) light with a continuous spectrum covering 0.45-1.2 microm is scaled from 250-740 mW by varying the repetition rate of an amplified, frequency doubled, telecom laser diode. Efficient SC generation requires minimal non-linearity in