Patents Assigned to VerLASE Technologies LLC
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Patent number: 10620504Abstract: Color-conversion structures for converting input pump light of a color to one or more differing colors. In some embodiments, the color-conversion structure includes a color-conversion (CC) layer having an input-side coating configured to optimize the amount of the pump light reaching the CC layer and to optimize the amount of color-converted light output by the CC layer. In some embodiments, the CC layer has an output-side coating configured to minimize the amount of unconverted pump light output from the CC layer and to maximize the color-converted light output from the CC layer. Various treatment for enhancing the performance of color-converting structures are also disclosed, as are a number of material combinations for quantum-well (QW) based CC layers and alternatives to QW-based CC layers. Also disclosed are light-emitting structures that each include a color-conversion structure made in accordance with the present disclosure, as well as displays composed of such light-emitting structures.Type: GrantFiled: August 28, 2017Date of Patent: April 14, 2020Assignee: VerLASE Technologies LLCInventor: Ajaykumar R. Jain
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Publication number: 20190284473Abstract: Color-conversion structures for converting input pump light of a color to one or more differing colors. In some embodiments, the color-conversion structure includes a color-conversion (CC) layer having an input-side coating configured to optimize the amount of the pump light reaching the CC layer and to optimize the amount of color-converted light output by the CC layer. In some embodiments, the CC layer has an output-side coating configured to minimize the amount of unconverted pump light output from the CC layer and to maximize the color-converted light output from the CC layer. Various treatment for enhancing the performance of color-converting structures are also disclosed, as are a number of material combinations for quantum-well (QW) based CC layers and alternatives to QW-based CC layers. Also disclosed are light-emitting structures that each include a color-conversion structure made in accordance with the present disclosure, as well as displays composed of such light-emitting structures.Type: ApplicationFiled: August 28, 2017Publication date: September 19, 2019Applicant: VERLASE TECHNOLOGIES LLCInventor: Ajaykumar R. Jain
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Patent number: 9525150Abstract: Optoelectronic devices containing functional elements made from layers liberated from natural and/or fabricated inherently lamellar semiconductor donors. In one embodiment, a donor is provided, a layer is detached from the donor, and the layer is incorporated into an optoelectronic device as a functional element thereof. The thickness of the detached layer is tuned as needed to suit the functionality of the functional element. Examples of functional elements that can be made using detached layers include p-n junctions, Schotkey junctions, PIN junctions, and confinement layers, among others. Examples of optoelectronic devices that can incorporate detached layers include LEDs, laser diodes, MOSFET transistors, and MISFET transistors, among others.Type: GrantFiled: January 14, 2016Date of Patent: December 20, 2016Assignee: VerLASE Technologies LLCInventor: Ajaykumar R. Jain
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Patent number: 9431794Abstract: Optoelectronic devices, such as light-emitting diodes, laser diodes, image sensors, optical detectors, etc., made by depositing (growing) one or more epitaxial semiconductor layers on a monocrystalline lamellar/layered substrate so that each layer has a wurtzite crystal structure. In some embodiments, the layers are deposited and then one or more lamellas of the starting substrate are removed from the rest of the substrate. In one subset of such embodiments, the removed lamella(s) is/are partially or entirely removed. In other embodiments, one or more lamellas of the starting substrate are removed prior to depositing the one or more wurtzite-crystal-structure-containing layer(s).Type: GrantFiled: September 10, 2014Date of Patent: August 30, 2016Assignee: VERLASE TECHNOLOGIES LLCInventor: Ajaykumar R. Jain
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Patent number: 9354366Abstract: Optical resonators that are enhanced with photoluminescent phosphors and are designed and configured to output light at one or more wavelengths based on input/pump light, and systems and devices made with such resonators. In some embodiments, the resonators contain multiple optical resonator cavities in combination with one or more photoluminescent phosphor layers or other structures. In other embodiments, the resonators are designed to simultaneously resonate at the input/pump and output wavelengths. The photoluminescent phosphors can be any suitable photoluminescent material, including semiconductor and other materials in quantum-confining structures, such as quantum wells and quantum dots, among others.Type: GrantFiled: March 23, 2015Date of Patent: May 31, 2016Assignee: VerLASE Technologies LLCInventor: Ajaykumar R. Jain
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Patent number: 9269854Abstract: Methods of making optoelectronic devices containing functional elements made from layers liberated from natural and/or fabricated lamellar semiconductor donors. In one embodiment, a donor is provided, a layer is detached from the donor, and the layer is incorporated into an optoelectronic device as a functional element thereof. The thickness of the detached layer is tuned as needed to suit the functionality of the functional element. Examples of functional elements that can be made using detached layers include p-n junctions, Schotkey junctions, PIN junctions, and confinement layers, among others. Examples of optoelectronic devices that can incorporate detached layers include LEDs, laser diodes, MOSFET transistors, and MISFET transistors, among others.Type: GrantFiled: March 21, 2011Date of Patent: February 23, 2016Assignee: VerLASE Technologies LLCInventor: Ajaykumar R. Jain
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Publication number: 20150288129Abstract: Optical resonator devices and systems enhanced with photoluminescent phosphors and designed and configured to output working light in an edge-emitting fashion at one or more wavelengths based on input/pump light, and systems and devices made with such resonators. The edge-emitting functionality is enabled by providing one or more waveguides that direct light luminesced from the phosphors to one or more edges of the device. In some embodiments, the resonators contain multiple optical resonator cavities in combination with one or more photoluminescent phosphor layers or other structures. In other embodiments, the resonators are designed to simultaneously resonate at the input/pump and output wavelengths. The photoluminescent phosphors can be any suitable photoluminescent material, including semiconductor and other materials in quantum-confining structures, such as quantum wells and quantum dots, among others.Type: ApplicationFiled: November 4, 2013Publication date: October 8, 2015Applicant: VERLASE TECHNOLOGIES LLCInventor: Ajaykumar R. Jain
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Patent number: 9035344Abstract: Phosphors fabricated from one or more layers of a naturally lamellar or fabricated lamellar semiconductor that is combined with a substrate. One or more of the layers of the lamellar semiconductor are separated from bulk material. The one or more layers are transformed into a phosphor for use with one or more light-emitting devices for the purpose of modifying the light emitted by the light-emitting device(s). Such transformation can be effected in a variety of ways, such as precise thinning or thickening of the removed layer(s) and/or intercalating one or more species of ions into the layer(s) that function as phosphors.Type: GrantFiled: September 11, 2012Date of Patent: May 19, 2015Assignee: VerLASE Technologies LLCInventor: Ajaykumar R. Jain
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Patent number: 9019595Abstract: Optical resonators that are enhanced with photoluminescent phosphors and are designed and configured to output light at one or more wavelengths based on input/pump light, and systems and devices made with such resonators. In some embodiments, the resonators contain multiple optical resonator cavities in combination with one or more photoluminescent phosphor layers or other structures. In other embodiments, the resonators are designed to simultaneously resonate at the input/pump and output wavelengths. The photoluminescent phosphors can be any suitable photoluminescent material, including semiconductor and other materials in quantum-confining structures, such as quantum wells and quantum dots, among others.Type: GrantFiled: March 26, 2012Date of Patent: April 28, 2015Assignee: VerLASE Technologies LLCInventor: Ajaykumar R. Jain
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Publication number: 20140367719Abstract: Phosphors fabricated from one or more layers of a naturally lamellar or fabricated lamellar semiconductor that is combined with a substrate. One or more of the layers of the lamellar semiconductor are separated from bulk material. The one or more layers are transformed into a phosphor for use with one or more light-emitting devices for the purpose of modifying the light emitted by the light-emitting device(s). Such transformation can be effected in a variety of ways, such as precise thinning or thickening of the removed layer(s) and/or intercalating one or more species of ions into the layer(s) that function as phosphors.Type: ApplicationFiled: September 11, 2012Publication date: December 18, 2014Applicant: VERLASE TECHNOLOGIES LLCInventor: Ajaykumar R. Jain
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Patent number: 8859412Abstract: Optoelectronic devices, such as light-emitting diodes, laser diodes, image sensors, optical detectors, etc., made by depositing (growing) one or more epitaxial semiconductor layers on a monocrystalline lamellar/layered substrate so that each layer has a wurtzite crystal structure. In some embodiments, the layers are deposited and then one or more lamellas of the starting substrate are removed from the rest of the substrate. In one subset of such embodiments, the removed lamella(s) is/are partially or entirely removed. In other embodiments, one or more lamellas of the starting substrate are removed prior to depositing the one or more wurtzite-crystal-structure-containing layer(s).Type: GrantFiled: February 9, 2012Date of Patent: October 14, 2014Assignee: VerLASE Technologies LLCInventor: Ajaykumar R. Jain
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Publication number: 20140055845Abstract: Optical resonators that are enhanced with photoluminescent phosphors and are designed and configured to output light at one or more wavelengths based on input/pump light, and systems and devices made with such resonators. In some embodiments, the resonators contain multiple optical resonator cavities in combination with one or more photoluminescent phosphor layers or other structures. In other embodiments, the resonators are designed to simultaneously resonate at the input/pump and output wavelengths. The photoluminescent phosphors can be any suitable photoluminescent material, including semiconductor and other materials in quantum-confining structures, such as quantum wells and quantum dots, among others.Type: ApplicationFiled: March 26, 2012Publication date: February 27, 2014Applicant: VERLASE TECHNOLOGIES LLCInventor: Ajaykumar R. Jain
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Publication number: 20140024159Abstract: Optoelectronic devices, such as light-emitting diodes, laser diodes, image sensors, optical detectors, etc., made by depositing (growing) one or more epitaxial semiconductor layers on a monocrystalline lamellar/layered substrate so that each layer has a wurtzite crystal structure. In some embodiments, the layers are deposited and then one or more lamellas of the starting substrate are removed from the rest of the substrate. In one subset of such embodiments, the removed lamella(s) is/are partially or entirely removed. In other embodiments, one or more lamellas of the starting substrate are removed prior to depositing the one or more wurtzite-crystal-structure-containing layer(s).Type: ApplicationFiled: February 9, 2012Publication date: January 23, 2014Applicant: VERLASE TECHNOLOGIES LLCInventor: Ajaykumar R. Jain
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Publication number: 20130143336Abstract: Methods of making optoelectronic devices containing functional elements made from layers liberated from natural and/or fabricated lamellar semiconductor donors. In one embodiment, a donor is provided, a layer is detached from the donor, and the layer is incorporated into an optoelectronic device as a functional element thereof. The thickness of the detached layer is tuned as needed to suit the functionality of the functional element. Examples of functional elements that can be made using detached layers include p-n junctions, Schotkey junctions, PIN junctions, and confinement layers, among others. Examples of optoelectronic devices that can incorporate detached layers include LEDs, laser diodes, MOSFET transistors, and MISFET transistors, among others.Type: ApplicationFiled: March 21, 2011Publication date: June 6, 2013Applicant: VerLASE Technologies LLCInventor: Ajaykumar R. Jain