Mr. Dhiraj Kumar Profile

Dhiraj Kumar

Research Scholar at Univ Politècnica de Catalunya

SPIE Involvement:

Author

Publications (5)

SPIE Journal Paper | 31 January 2013

Determination of the overlap factor and its enhancement for medium-size tropospheric lidar systems: a ray-tracing approach

Dhiraj Kumar, Francesc Rocadenbosch

JARS, Vol. 7, Issue 01, 073591, (January 2013) https://doi.org/10.1117/12.10.1117/1.JRS.7.073591

KEYWORDS: Telescopes, Sensors, LIDAR, Device simulation, Systems modeling, Atmospheric laser remote sensing, Atmospheric modeling, Fiber optics, Fiber lasers, Aerosols

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Proceedings Article | 30 September 2011 Paper

Six-channel polychromator design and implementation for the UPC elastic/Raman lidar

Dhiraj Kumar, Francesc Rocadenbosch, Michaël Sicard, Adolfo Comeron, Constantino Muñoz, Diego Lange, Sergio Tomás, Eduard Gregorio

Proceedings Volume 8182, 81820W (2011) https://doi.org/10.1117/12.896305

KEYWORDS: Near infrared, Photodetectors, Optical design, Lenses, LIDAR, Sensors, Ultraviolet radiation, Composites, Receivers, Raman spectroscopy

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Proceedings Article | 3 October 2006 Paper

Engineering of a water-vapour Raman elastic-backscatter lidar at the Technical University of Catalonia, Spain

Dhiraj Kumar, Michaël Sicard, Sergio Tomás, Constantino Muñoz, Francesc Rocadenbosch, Adolfo Comerón

Proceedings Volume 6367, 63670U (2006) https://doi.org/10.1117/12.690701

KEYWORDS: Signal to noise ratio, Telescopes, Photon counting, Backscatter, LIDAR, Aerosols, Raman spectroscopy, Analog electronics, Atmospheric particles, Atmospheric modeling

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Proceedings Article | 22 October 2004 Paper

Dependence of vertical-cavity surface-emitting laser diodes with integrated microfluidic channels on fluid refractive index

Dhiraj Kumar, Hua Shao, Kevin Lear

Proceedings Volume 5557, (2004) https://doi.org/10.1117/12.557392

KEYWORDS: Refractive index, Mirrors, Microfluidics, Resonators, Biosensors, Semiconductor lasers, Laser resonators, Diodes, Vertical cavity surface emitting lasers, Dielectric mirrors

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Proceedings Article | 22 October 2004 Paper

Microfluidic passive-cavity interferometer-based biosensor

Hua Shao, Dhiraj Kumar, Kevin Lear

Proceedings Volume 5557, (2004) https://doi.org/10.1117/12.560002

KEYWORDS: Refractive index, Mirrors, Microfluidics, Gaussian beams, Optical spheres, Resonators, Interferometers, Glasses, Spectroscopy, Biosensors

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