Monolithic White and Multi-Color Lasers Tunable in Full Visible Spectrum

Cun-Zheng Ning (Inventor)

Research output: Patent

Abstract

Semiconductor lasers able to emit over the full visible color spectrum have a wide range of practical applications such as solid-state lighting, full-color displays, visible color communications, and multi-color fluorescence sensing. To the human eye, light with a mixture of four monochromatic lasers is visually equivalent to a white illuminant. Current technologies utilize non-semiconductor materials that result in bulky, inefficient systems that are also incompatible with electrical injection needed to incorporate them into electronics. The semiconductor-based approaches currently practiced to achieve this laser involve combining different materials and devices together resulting in complex, large, and costly systems. Therefore, the desire arises for a compact, tunable, monolithic laser capable of emitting both white and multi-color light. Researchers at ASU have developed a multi-color monolithic semiconductor laser structure capable of emitting at three separate wavelengths that can be combined to produce white light. These structures are formed on SiO2/Si substrates using a combination of ion-exchange growth mechanisms in a single-zone chemical vapor deposition reactor. The technologys compact nature relies on a monocrystalline ZnCdSSe quaternary heterostructure nanosheet that contains three segments, each having a different alloy composition to emit a different color. At high enough pumping and temperature, each segment provides one of three primary colors, making it tunable. The novel growth method decouples the required alloy composition that produces a monolithic structure that is cheaper to integrate and easier to package. Potential Applications Laser Lighting Full-color imaging and display Biological and chemical inspection On-chip wavelength-division multiplexing (WDM) Benefits and Advantages Efficient - offers higher energy conversion luminescence efficiencies and potential output powers than white LEDs Low Cost - the monolithic structure unites all components into one laser so there is no need for separate, costly assemblies to achieve different wavelengths of color Innovative - the monolithic structure is able to produce lasing in aby visible color-including white- under the right combination of the primary colors, which has never before been achieved Versatile - the laser has a vast field of potential applications ranging from full-color imaging to on-chip purposes Download Original PDF For more information about the inventor(s) and their research, please see: Dr. Cun-Zheng Ning's directory webpage For more information about related technologies, please see: M12-056P: Generation and dynamical control of light of white or multiple colored (wavelengths) using alloy nanowires
Original languageEnglish (US)
StatePublished - May 29 2015

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tunable lasers
visible spectrum
color
lasers
illuminating
semiconductor lasers
chips
directories
wavelengths
laser applications
energy conversion
wavelength division multiplexing
complex systems
assemblies
lasing
inspection
pumping
nanowires
light emitting diodes
communication

Cite this

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title = "Monolithic White and Multi-Color Lasers Tunable in Full Visible Spectrum",
abstract = "Semiconductor lasers able to emit over the full visible color spectrum have a wide range of practical applications such as solid-state lighting, full-color displays, visible color communications, and multi-color fluorescence sensing. To the human eye, light with a mixture of four monochromatic lasers is visually equivalent to a white illuminant. Current technologies utilize non-semiconductor materials that result in bulky, inefficient systems that are also incompatible with electrical injection needed to incorporate them into electronics. The semiconductor-based approaches currently practiced to achieve this laser involve combining different materials and devices together resulting in complex, large, and costly systems. Therefore, the desire arises for a compact, tunable, monolithic laser capable of emitting both white and multi-color light. Researchers at ASU have developed a multi-color monolithic semiconductor laser structure capable of emitting at three separate wavelengths that can be combined to produce white light. These structures are formed on SiO2/Si substrates using a combination of ion-exchange growth mechanisms in a single-zone chemical vapor deposition reactor. The technologys compact nature relies on a monocrystalline ZnCdSSe quaternary heterostructure nanosheet that contains three segments, each having a different alloy composition to emit a different color. At high enough pumping and temperature, each segment provides one of three primary colors, making it tunable. The novel growth method decouples the required alloy composition that produces a monolithic structure that is cheaper to integrate and easier to package. Potential Applications Laser Lighting Full-color imaging and display Biological and chemical inspection On-chip wavelength-division multiplexing (WDM) Benefits and Advantages Efficient - offers higher energy conversion luminescence efficiencies and potential output powers than white LEDs Low Cost - the monolithic structure unites all components into one laser so there is no need for separate, costly assemblies to achieve different wavelengths of color Innovative - the monolithic structure is able to produce lasing in aby visible color-including white- under the right combination of the primary colors, which has never before been achieved Versatile - the laser has a vast field of potential applications ranging from full-color imaging to on-chip purposes Download Original PDF For more information about the inventor(s) and their research, please see: Dr. Cun-Zheng Ning's directory webpage For more information about related technologies, please see: M12-056P: Generation and dynamical control of light of white or multiple colored (wavelengths) using alloy nanowires",
author = "Cun-Zheng Ning",
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language = "English (US)",
type = "Patent",

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T1 - Monolithic White and Multi-Color Lasers Tunable in Full Visible Spectrum

AU - Ning, Cun-Zheng

PY - 2015/5/29

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N2 - Semiconductor lasers able to emit over the full visible color spectrum have a wide range of practical applications such as solid-state lighting, full-color displays, visible color communications, and multi-color fluorescence sensing. To the human eye, light with a mixture of four monochromatic lasers is visually equivalent to a white illuminant. Current technologies utilize non-semiconductor materials that result in bulky, inefficient systems that are also incompatible with electrical injection needed to incorporate them into electronics. The semiconductor-based approaches currently practiced to achieve this laser involve combining different materials and devices together resulting in complex, large, and costly systems. Therefore, the desire arises for a compact, tunable, monolithic laser capable of emitting both white and multi-color light. Researchers at ASU have developed a multi-color monolithic semiconductor laser structure capable of emitting at three separate wavelengths that can be combined to produce white light. These structures are formed on SiO2/Si substrates using a combination of ion-exchange growth mechanisms in a single-zone chemical vapor deposition reactor. The technologys compact nature relies on a monocrystalline ZnCdSSe quaternary heterostructure nanosheet that contains three segments, each having a different alloy composition to emit a different color. At high enough pumping and temperature, each segment provides one of three primary colors, making it tunable. The novel growth method decouples the required alloy composition that produces a monolithic structure that is cheaper to integrate and easier to package. Potential Applications Laser Lighting Full-color imaging and display Biological and chemical inspection On-chip wavelength-division multiplexing (WDM) Benefits and Advantages Efficient - offers higher energy conversion luminescence efficiencies and potential output powers than white LEDs Low Cost - the monolithic structure unites all components into one laser so there is no need for separate, costly assemblies to achieve different wavelengths of color Innovative - the monolithic structure is able to produce lasing in aby visible color-including white- under the right combination of the primary colors, which has never before been achieved Versatile - the laser has a vast field of potential applications ranging from full-color imaging to on-chip purposes Download Original PDF For more information about the inventor(s) and their research, please see: Dr. Cun-Zheng Ning's directory webpage For more information about related technologies, please see: M12-056P: Generation and dynamical control of light of white or multiple colored (wavelengths) using alloy nanowires

AB - Semiconductor lasers able to emit over the full visible color spectrum have a wide range of practical applications such as solid-state lighting, full-color displays, visible color communications, and multi-color fluorescence sensing. To the human eye, light with a mixture of four monochromatic lasers is visually equivalent to a white illuminant. Current technologies utilize non-semiconductor materials that result in bulky, inefficient systems that are also incompatible with electrical injection needed to incorporate them into electronics. The semiconductor-based approaches currently practiced to achieve this laser involve combining different materials and devices together resulting in complex, large, and costly systems. Therefore, the desire arises for a compact, tunable, monolithic laser capable of emitting both white and multi-color light. Researchers at ASU have developed a multi-color monolithic semiconductor laser structure capable of emitting at three separate wavelengths that can be combined to produce white light. These structures are formed on SiO2/Si substrates using a combination of ion-exchange growth mechanisms in a single-zone chemical vapor deposition reactor. The technologys compact nature relies on a monocrystalline ZnCdSSe quaternary heterostructure nanosheet that contains three segments, each having a different alloy composition to emit a different color. At high enough pumping and temperature, each segment provides one of three primary colors, making it tunable. The novel growth method decouples the required alloy composition that produces a monolithic structure that is cheaper to integrate and easier to package. Potential Applications Laser Lighting Full-color imaging and display Biological and chemical inspection On-chip wavelength-division multiplexing (WDM) Benefits and Advantages Efficient - offers higher energy conversion luminescence efficiencies and potential output powers than white LEDs Low Cost - the monolithic structure unites all components into one laser so there is no need for separate, costly assemblies to achieve different wavelengths of color Innovative - the monolithic structure is able to produce lasing in aby visible color-including white- under the right combination of the primary colors, which has never before been achieved Versatile - the laser has a vast field of potential applications ranging from full-color imaging to on-chip purposes Download Original PDF For more information about the inventor(s) and their research, please see: Dr. Cun-Zheng Ning's directory webpage For more information about related technologies, please see: M12-056P: Generation and dynamical control of light of white or multiple colored (wavelengths) using alloy nanowires

M3 - Patent

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