Showing papers by "Edward S. Fry published in 2007"
TL;DR: The attenuation coefficient of a pulsed laser beam in water is investigated experimentally and it is found that the attenuation coefficients are dependent on the pulse energy and the linewidth of the laser, rather than a constant.
Abstract: The attenuation coefficient of a pulsed laser beam in water is investigated experimentally. It is found that the attenuation coefficient is dependent on the pulse energy and the linewidth of the laser, rather than a constant. The attenuation coefficient for a narrow linewidth laser can exceed that of a broad linewidth laser due to stimulated Brillouin scattering when the laser intensity is larger than a certain value. A theoretical analysis is provided.
14 citations
TL;DR: In this article, the authors present the current status of their experimental setup, consisting of a light source based on a multistage pulsed Yb-doped fiber amplifier and a receiver unit based on an excited-state Faraday anomalous dispersion optical filter.
Abstract: For the remote sensing of temperature profiles in the ocean, Brillouin scattering can be exploited as a temperature tracer. Such a lidar system is capable of delivering cost-effective on-line data from an extended region of the ocean compared to conventional in situ techniques. The acquired temperature profiles can give valuable input into climate studies and weather forecasts. In this contribution, we present the current status of our experimental setup, consisting of a light source based on a multistage pulsed Yb-doped fiber amplifier and a receiver unit based on an excited-state Faraday anomalous dispersion optical filter.
14 citations
Patent•
28 Aug 2007TL;DR: In this article, an apparatus and method for forming a diffuse reflector is described, which is formed by exposing transmissive particles of a pre-determined purity to pressure and forming a material having desired diffuse reflective properties.
Abstract: The invention relates an apparatus and method for forming a diffuse reflector. In one embodiment of the invention, a diffuse reflector is formed by exposing transmissive particles of a pre-determined purity to pressure and forming a material having desired diffuse reflective properties. The transmissive particles may further be thermally treated, such as by sintering, to form material having desired diffuse reflective properties. The treated transmissive particles may then be disposed in a vessel and define a cavity therein to form an integrated cavity diffuse reflector.
2 citations
Patent•
28 Aug 2007TL;DR: In this article, an apparatus and method for forming a diffuse reflector is described, which is formed by exposing transmissive particles of a pre-determined purity to pressure and forming a material having desired diffuse reflective properties.
Abstract: The invention relates an apparatus and method for forming a diffuse reflector. In one embodiment of the invention, a diffuse reflector is formed by exposing transmissive particles of a pre-determined purity to pressure and forming a material having desired diffuse reflective properties. The transmissive particles may further be thermally treated, such as by sintering, to form material having desired diffuse reflective properties. The treated transmissive particles may then be disposed in a vessel and define a cavity therein to form an integrated cavity diffuse reflector.