Zobrazeno 1 - 10
of 270
pro vyhledávání: '"Kostuk, Raymond K"'
Design and optimization of cascaded DCG based holographic elements for spectrum-splitting PV systems
In this work, the technique of designing and optimizing broadband volume transmission holograms using dichromate gelatin (DCG) is summarized for solar spectrum-splitting application. Spectrum splitting photovoltaic system uses a series of single band
Externí odkaz:
http://hdl.handle.net/10150/626491
http://arizona.openrepository.com/arizona/handle/10150/626491
http://arizona.openrepository.com/arizona/handle/10150/626491
In this paper a prototype spectrum-splitting photovoltaic system based on volume holographic lenses (VHL) is designed, fabricated and tested. In spectrum-splitting systems, incident sunlight is divided in spectral bands for optimal conversion by a se
Externí odkaz:
http://hdl.handle.net/10150/627188
http://arizona.openrepository.com/arizona/handle/10150/627188
http://arizona.openrepository.com/arizona/handle/10150/627188
Autor:
Howlett, Isela D., Han, Wanglei, Gordon, Michael, Rice, Photini, Barton, Jennifer K., Kostuk, Raymond K.
A reflectance volume holographic imaging (VHI) endoscope has been designed for simultaneous in vivo imaging of surface and subsurface tissue structures. Prior utilization of VHI systems has been limited to ex vivo tissue imaging. The VHI system prese
Externí odkaz:
http://hdl.handle.net/10150/624713
http://arizona.openrepository.com/arizona/handle/10150/624713
http://arizona.openrepository.com/arizona/handle/10150/624713
Autor:
Wu, Yuechen, Kostuk, Raymond K.
Spectrum-splitting is a multijunction photovoltaic technology that can effectively improve the conversion efficiency and reduce the cost of photovoltaic systems. Microscale PV design integrates a group of microconcentrating photovoltaic (CPV) systems
Externí odkaz:
http://hdl.handle.net/10150/623284
http://arizona.openrepository.com/arizona/handle/10150/623284
http://arizona.openrepository.com/arizona/handle/10150/623284
In this work a spectrum splitting micro-scale concentrating PV system is evaluated to increase the conversion efficiency of flat panel PV systems. In this approach, the dispersed spectrum splitting concentration systems is scaled down to a small size
Externí odkaz:
http://hdl.handle.net/10150/622714
http://arizona.openrepository.com/arizona/handle/10150/622714
http://arizona.openrepository.com/arizona/handle/10150/622714
Spectrum splitting is an approach to increasing the conversion efficiency of a photovoltaic (PV) system. Several methods can be used to perform this function which requires efficient spatial separation of different spectral bands of the incident sola
Externí odkaz:
http://hdl.handle.net/10150/622713
http://arizona.openrepository.com/arizona/handle/10150/622713
http://arizona.openrepository.com/arizona/handle/10150/622713
This paper presents a segmented parabolic concentrator employing holographic spectral filters that provide focusing and spectral bandwidth separation capability to the system. Strips of low band gap silicon photovoltaic (PV) cells are formed into a p
Externí odkaz:
http://hdl.handle.net/10150/622711
http://arizona.openrepository.com/arizona/handle/10150/622711
http://arizona.openrepository.com/arizona/handle/10150/622711
Autor:
Chrysler, Benjamin D., Ayala Pelaez, Silvana, Wu, Yuechen, Vorndran, Shelby D., Kostuk, Raymond K.
In this study the impact of outdoor temperature variations and solar illumination exposure on spectral filter material and holographic optical elements is examined. Although holographic components have been shown to be useful for solar spectrum split
Externí odkaz:
http://hdl.handle.net/10150/622712
http://arizona.openrepository.com/arizona/handle/10150/622712
http://arizona.openrepository.com/arizona/handle/10150/622712
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