Search Patents
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Patent number: 8155492Abstract: A method is disclosed for forming a photonic crystal in a homogeneous layer of material. The method enables the fabrication of 1D, 2D, or 3D photonic crystals. Photonic crystals in accordance with embodiments of the present invention exhibit low temperature sensitivity and low device curvature. In some embodiments, photonic crystals in accordance with embodiments of the present invention are integrated with mechanical elements, such as micromechanical, nanomechanical, microelectronic, and microfluidics devices and systems.Type: GrantFiled: October 10, 2008Date of Patent: April 10, 2012Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Sanja Hadzialic, Olav Solgaard
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Patent number: 7809219Abstract: An acoustic sensor includes at least one photonic crystal structure having at least one optical resonance with a resonance frequency and a resonance lineshape. The acoustic sensor further includes a housing mechanically coupled to the at least one photonic crystal structure. At least one of the resonance frequency and the resonance lineshape is responsive to acoustic waves incident upon the housing.Type: GrantFiled: February 11, 2009Date of Patent: October 5, 2010Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Onur Kilic, Olav Solgaard, Michel J. F. Digonnet, Gordon S. Kino
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Patent number: 7526148Abstract: An acoustic sensor includes at least one photonic crystal structure having at least one optical resonance with a resonance frequency and a resonance lineshape. The acoustic sensor further includes a housing substantially surrounding the at least one photonic crystal structure and mechanically coupled to the at least one photonic crystal structure. At least one of the resonance frequency and the resonance lineshape is responsive to acoustic waves incident upon the housing.Type: GrantFiled: April 28, 2006Date of Patent: April 28, 2009Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Onur Kilic, Olav Solgaard, Michel J. F. Digonnet, Gordon S. Kino
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Patent number: 8160406Abstract: An acoustic sensor includes at least one structure including at least one photonic crystal slab and an optical fiber optically coupled to the at least one photonic crystal slab, and having at least one optical resonance with a resonance frequency and a resonance lineshape. The acoustic sensor further includes a housing mechanically coupled to the at least one structure. At least one of the resonance frequency and the resonance lineshape is responsive to acoustic waves incident upon the housing.Type: GrantFiled: September 1, 2010Date of Patent: April 17, 2012Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Onur Kilic, Olav Solgaard, Michel J. F. Digonnet, Gordon S. Kino
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Patent number: 7155087Abstract: We introduce a mechanically tunable photonic crystal structure consisting of coupled photonic crystal slabs. Using both analytic theory, and first-principles finite-difference time-domain simulations, we demonstrate that the transmission and reflection coefficients for light normally incident upon such structures can be highly sensitive to nano-scale variations in the spacing between the slabs. Moreover, by specifically configuring the photonic crystal structures, the high sensitivity can be preserved in spite of significant fabrication-related disorders. We expect such a structure to play important roles in micro-mechanically tunable optical sensors and filters.Type: GrantFiled: October 8, 2003Date of Patent: December 26, 2006Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Wonjoo Suh, Mehmet Fatih Yanik, Olav Solgaard, Shanhui Fan
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Patent number: 7412127Abstract: We introduce a mechanically tunable photonic crystal structure consisting of coupled photonic crystal slabs. Using both analytic theory, and first-principles finite-difference time-domain simulations, we demonstrate that the transmission and reflection coefficients for light normally incident upon such structures can be highly sensitive to nano-scale variations in the spacing between the slabs. Moreover, by specifically configuring the photonic crystal structures, the high sensitivity can be preserved in spite of significant fabrication-related disorders. We expect such a structure to play important roles in micro-mechanically tunable optical sensors and filters.Type: GrantFiled: August 15, 2006Date of Patent: August 12, 2008Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Wonjoo Suh, Mehmet Fatih Yanik, Olav Solgaard, Shanhui Fan
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Patent number: 8331741Abstract: An acoustic sensor includes at least one photonic crystal structure and an optical fiber in optical communication with the at least one photonic crystal structure. The at least one photonic crystal structure has at least one optical resonance with a resonance frequency and a resonance lineshape, wherein at least one of the resonance frequency and the resonance lineshape is responsive to acoustic waves incident upon the acoustic sensor. The acoustic sensor further includes an optical fiber in optical communication with the at least one photonic crystal structure. The optical fiber is configured to transmit light which impinges the at least one photonic crystal structure and to receive at least a portion of the light which impinges the at least one photonic crystal structure.Type: GrantFiled: January 23, 2012Date of Patent: December 11, 2012Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Onur Kilic, Olav Solgaard, Michel J. F. Digonnet, Gordon S. Kino