Opto-acoustic methods and apparatus for performing high resolution acoustic imaging and other sample probing and modification operations
    11.
    发明授权
    Opto-acoustic methods and apparatus for performing high resolution acoustic imaging and other sample probing and modification operations 有权
    用于执行高分辨率声学成像和其他样本探测和修改操作的光学声学方法和装置

    公开(公告)号:US08567253B2

    公开(公告)日:2013-10-29

    申请号:US11921635

    申请日:2006-05-30

    Abstract: An opto-acoustic transducer assembly includes a substrate; at least one layer of opto-acoustic material coupled to a surface of the substrate, where the at least one layer of opto-acoustic material generates sound waves when struck by pulses of pump light; and an acoustic lens configured to focus sound waves generated by the at least one layer of opto-acoustic material towards a sample. The acoustic lens is further configured to collect sound waves returning from the sample and to direct the returning sound waves to the at least one layer of opto-acoustic material. In one non-limiting embodiment the at least one layer of opto-acoustic material is interposed between the substrate and the acoustic lens, and the substrate is substantially transparent to light having wavelengths of interest.

    Abstract translation: 光声换能器组件包括基底; 耦合到所述衬底的表面的至少一层光声材料层,其中所述至少一层光声材料层在被泵浦光脉冲击中时产生声波; 以及声透镜,被配置为将由所述至少一层光声材料层产生的声波聚焦到样品。 声透镜还被配置为收集从样品返回的声波并将返回的声波引导到至少一层光声材料层。 在一个非限制性实施例中,至少一层光声材料层插入在基底和声透镜之间,并且基底对于具有感兴趣波长的光基本上是透明的。

    ENHANCED ULTRA-HIGH RESOLUTION ACOUSTIC MICROSCOPE
    12.
    发明申请
    ENHANCED ULTRA-HIGH RESOLUTION ACOUSTIC MICROSCOPE 有权
    增强超分辨率声学显微镜

    公开(公告)号:US20110036171A1

    公开(公告)日:2011-02-17

    申请号:US12449415

    申请日:2008-02-05

    CPC classification number: G01N29/0681 G01N29/2418 G01S15/8965 G10K15/046

    Abstract: An optical-acoustic transducer structure includes at least one metal or semiconducting film in which a part of a pump light pulse is absorbed to generate a sound pulse; and at least one dielectric film. The thicknesses and optical properties of the at least one metal or semiconducting film and the at least one dielectric film are selected so that a returning sound pulse results in a measurable change in the optical reflectivity and/or some other optical characteristic of the transducer structure. The transducer structure includes a resonant cavity, and an output surface that is shaped so as to provide no significant focusing of generated sound waves when the sound waves are launched towards a surface of the sample.

    Abstract translation: 光声换能器结构包括至少一个金属或半导体膜,其中泵浦光脉冲的一部分被吸收以产生声脉冲; 和至少一个电介质膜。 选择至少一种金属或半导体膜和至少一种电介质膜的厚度和光学性质,使得返回的声脉冲导致换能器结构的光学反射率和/或某些其他光学特性的可测量的变化。 换能器结构包括谐振腔和输出表面,其被形成为当声波朝向样品的表面发射时不产生所产生的声波的显着聚焦。

    Opto-acoustic methods and apparatus for performing high resolution acoustic imaging and other sample probing and modification operations
    13.
    发明授权
    Opto-acoustic methods and apparatus for performing high resolution acoustic imaging and other sample probing and modification operations 有权
    用于执行高分辨率声学成像和其他样本探测和修改操作的光学声学方法和装置

    公开(公告)号:US07624640B2

    公开(公告)日:2009-12-01

    申请号:US11324866

    申请日:2006-01-04

    Abstract: An opto-acoustic transducer assembly includes a substrate; at least one layer of opto-acoustic material coupled to a surface of the substrate, where the at least one layer of opto-acoustic material generates sound waves when struck by pulses of pump light; and an acoustic lens configured to focus sound waves generated by the at least one layer of opto-acoustic material towards a sample. The acoustic lens is further configured to collect sound waves returning from the sample and to direct the returning sound waves to the at least one layer of opto-acoustic material. The at least one layer of opto-acoustic material is responsive to the returning sound waves for having at least one optical property thereof changed, where the change is detectable from a change in a characteristic of reflected pulses of probe light that are time delayed with respect to the pulses of pump light.

    Abstract translation: 光声换能器组件包括基底; 耦合到所述衬底的表面的至少一层光声材料层,其中所述至少一层光声材料层在被泵浦光脉冲击中时产生声波; 以及声透镜,被配置为将由所述至少一层光声材料层产生的声波聚焦到样品。 声透镜还被配置为收集从样品返回的声波并将返回的声波引导到至少一层光声材料层。 所述至少一层光声材料响应于返回的声波,以使其至少一个光学特性发生变化,其中可以根据相对于时间延迟的探测光的反射脉冲的特性的变化来检测该变化 到泵浦光的脉冲。

    Magneto-optoelectronic switch and sensor

    公开(公告)号:US20090052484A1

    公开(公告)日:2009-02-26

    申请号:US12288173

    申请日:2008-10-16

    Inventor: Arto V. Nurmikko

    Abstract: A Magneto-Optoelectronic Device MOD (10) includes a magnetic sensing device (12), such as a magnetoresistive device or a magnetic tunnel junction device, that is combined with a semiconductor light emitter (14), such as a LED or a laser diode, to create a compact integrated device where changes in an ambient magnetic field are expressed as changes in an optical beam intensity emanating from the MOD. Using the MOD (10) the magnetic field related information can be transmitted by a light wave over very large distances through some medium (34), for example, through free space and/or through an optical fiber.

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