Four-color laser white illuminant demonstrating high color-rendering quality

Journal Article · Fri Jul 01 00:00:00 EDT 2011 · Optics Express

DOI:https://doi.org/10.1364/OE.19.00A982· OSTI ID:1065708

Neumann, A. ^[1]; Wierer, J. J. ^[2]; Davis, W. ^[3]; Ohno, Y. ^[3]; Brueck, S. R. ^[1]; Tsao, J.Y. ^[2]

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1. Univ. of New Mexico, Albuquerque, NM (United States). Center for High Technology Materials
2. Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
3. National Institute of Standards and Technology (NIST), Gaithersburg, MD (United States)

Solid-state lighting is currently based on light-emitting diodes (LEDs) and phosphors. Solid-state lighting based on lasers would offer significant advantages including high potential efficiencies at high current densities. Light emitted from lasers, however, has a much narrower spectral line-width than light emitted from LEDs or phosphors. Therefore it is a common belief that white light produced by a set of lasers of different colors would not be of high enough quality for general illumination. We tested this belief experimentally, and found the opposite to be true. This result paves the way for the use of lasers in solid-state lighting.

• Research Organization: Energy Frontier Research Centers (EFRC); EFRC for Solid State Lighting Science (SSLS)
• Sponsoring Organization: USDOE SC Office of Basic Energy Sciences (SC-22)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 1065708
• Journal Information: Optics Express, Journal Name: Optics Express Journal Issue: 104 Vol. 19; ISSN 1094-4087; ISSN OPEXFF
• Publisher: The Optical Society
• Country of Publication: United States
• Language: English

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