公开(公告)号：US20170299434A1

公开(公告)日：2017-10-19

申请号：US15602323

申请日：2017-05-23

申请人： Juejun Hu ,  Tian GU ,  Kazumi WADA ,  Anuradha Murthy AGARWAL ,  Lionel Cooper KIMERLING ,  Derek Matthew KITA ,  Junying LI ,  Fleur Jacolien FOK

发明人： Juejun Hu ,  Tian GU ,  Kazumi WADA ,  Anuradha Murthy AGARWAL ,  Lionel Cooper KIMERLING ,  Derek Matthew KITA ,  Junying LI ,  Fleur Jacolien FOK

IPC分类号： G01J3/12 ,  G01J3/02 ,  G01J3/28

CPC分类号： G01J3/12 ,  G01J3/0208 ,  G01J3/0218 ,  G01J3/0237 ,  G01J3/2823 ,  G01J3/32 ,  G01J2003/1226

摘要： An apparatus for generating a spectral image includes a filter to receive incident light. The filter has a variable refractive index. The apparatus also includes a modulator, operably coupled to the filter, to modulate the variable refractive index of the filter so as to generate a plurality of optical patterns from the incident light. The plurality of optical patterns represents the spectral image and each optical pattern in the plurality of optical patterns corresponds to a different modulation of the variable refractive index. The apparatus further includes a detector, in optical communication with the filter, to detect the plurality of optical patterns.

公开(公告)号：US20180024072A1

公开(公告)日：2018-01-25

申请号：US15425443

申请日：2017-02-06

申请人： Zhaohong HAN ,  Jianwei MU ,  Anuradha Murthy AGARWAL ,  Pao Tai LIN ,  Lionel Cooper KIMERLING

发明人： Zhaohong HAN ,  Jianwei MU ,  Anuradha Murthy AGARWAL ,  Pao Tai LIN ,  Lionel Cooper KIMERLING

IPC分类号： G01N21/77 ,  G01N33/543

CPC分类号： G01N21/7746 ,  G01N21/41 ,  G01N21/648 ,  G01N21/65 ,  G01N33/54373 ,  G01N2021/655 ,  G01N2021/7776 ,  G01N2021/7783 ,  G01N2021/7786 ,  G01N2021/7789 ,  G01N2201/061

摘要： A sensing apparatus includes a light source to transmit a light beam, an input switch, a first sensing element, a second sensing element, and a detector. The input switch receives the light beam and includes a phase change material having a first state and a second state. The first sensing element receives the light beam from the input switch when the phase change material is in the first state and produces a first change in the light beam in response to a presence of a first analyte. The second sensing element receives the light beam from the input switch when the phase change material is in the second state and produces a second change in the light beam in response to a presence of a second analyte. The detector detects the first change and/or the second change in the light beam.

公开(公告)号：US20170242194A1

公开(公告)日：2017-08-24

申请号：US15591023

申请日：2017-05-09

申请人： Pao Tai LIN ,  Jurgen MICHEL ,  Anuradha Murthy AGARWAL

发明人： Pao Tai LIN ,  Jurgen MICHEL ,  Anuradha Murthy AGARWAL

IPC分类号： G02B6/293 ,  G01N21/77 ,  G01N21/65 ,  G02B6/122 ,  G01N21/64

CPC分类号： G02B6/29338 ,  G01N21/431 ,  G01N21/552 ,  G01N21/648 ,  G01N21/65 ,  G01N21/7746 ,  G02B6/122 ,  G02B6/29395 ,  G02B2006/12038 ,  G02B2006/12061

摘要： A device includes a substrate, a pedestal extending from the substrate, and a ring resonator disposed on the pedestal above the substrate. The ring resonator has a resonance wavelength greater than 1.5 μm and includes at least one of silicon and chalcogenide glass. The device can be used as a ring resonator sensor or a light source. The ring resonator is substantially transparent to mid-infrared radiation to reduce optical losses. The pedestal has a narrower width compared to the ring resonator to generate improved interaction between evanescent fields of light in the ring resonator and analytes nearby the ring resonator, thereby increasing sensing sensitivity. In addition, fabrication of the device is compatible with complementary metal-oxide-semiconductor (CMOS) processes and hence is amenable to large scale manufacturing.