摘要:
A modulatable source is to generate a signal. A multi-mode fiber is to propagate the signal. The fiber is associated with a fiber d*NA, corresponding to a product of a fiber diameter (d) and a fiber numerical aperture (NA), substantially between 1 micron radian and 4 micron radian. A receiver is to receive the propagated signal.
摘要:
A Raman spectroscopy system (600) is disclosed which includes a sub-wavelength responant. grating filter (508) and a photodiode with integrated sub-wavelength resonant grating filter are disclosed. The resonant grating filter (608) comprises an array of diffraction elements (104) having a periodic spacing that is less than the wavelength of radiation to be filtered and which are formed over a waveguide layer (110). The filter (608), which can reject a specific wavelength of radiation, can be placed between a Raman sample and a Raman detector (602) in order to filter radiation that is elastically scattered from the sample while transmitting other wavelengths. The wavelength rejected by the filter can be selected by tilting the filter (608) with respect to the radiation incident upon the filter.
摘要:
An electromagnetic resonance device (300) includes an input reflector (310), an output reflector (320), and a periodic dielectric medium (200) (PDM) disposed between the input reflector (310) and the output reflector (320). The input reflector (310) and output reflector (320) are configured to be reflective to radiation having a wavelength of interest. The PDM include a periodic structure having a dielectric periodocity between a first surface (280) and a second surface (290). The dielectric periodicity is configured with a negative refraction for the wavelength of interest. A first radiation (410) is reflected by the input reflector (310) toward the first surface (280) of the PDM, passes through the PDM, and is focused on the output reflector (320) as a second radiation (420). The second radiation (420) is reflected by the output reflector (320) toward the second surface (290) of the PDM, passes through the PDM, and is focused on the input reflector (310) as the first radiation (410).
摘要:
In an optoelectronic integrated circuit device comprising a vertical arrangement of integrated circuit layers, an optical signal is coupled between a first integrated circuit layer thereof and a second integrated circuit layer thereof. The optical signal is projected through a superlensing element positioned between the first and second integrated circuit layers.
摘要:
A scattering spectroscopy nanosensor includes a nanoscale-patterned sensing substrate to produce an optical scattering response signal indicative of a presence of an analyte when interrogated by an optical stimulus. The scattering spectroscopy nanosensor further includes a protective covering to cover and protect the nanoscale-patterned sensing substrate. The protective covering is to be selectably removed by exposure to an optical beam incident on the protective covering. The protective covering is to prevent the analyte from interacting with the nanoscale-patterned sensing substrate prior to being removed.
摘要:
Systems, methods, and apparatus to route optical signals are disclosed. An example apparatus to route optical signals includes a plurality of hollow metal waveguide optical switch arrays. Each of the arrays comprises a plurality of optical input ports and a plurality of optical output ports. The input ports and the output ports for a first one of the arrays are arranged in a first plane, the input ports and the output ports for a second one of the arrays are arranged in a second plane, and the plurality of arrays are stacked such that the first and second planes are adjacent. The first one of the arrays is to convey optical signals from a first communication device to a second communication device and the second one of the arrays is to convey optical signals from the second communication device to the first communication device.
摘要:
An optical interconnect (200) includes: a reflective body (230) having a first reflective surface (235) and a second reflective surface (240) opposite the first reflective surface (235); a first optical waveguide (205) that directs a first optical signal received from a first communicating device (105) to the first reflective surface (235); a second optical waveguide (210) that directs the first optical signal from the first reflective surface (235) of the reflective body (230) to a second communicating device (110); a third optical waveguide (215) that directs a second optical signal received from the second communicating device (110) to the second reflective surface (240) of the reflective body (230); and a fourth optical waveguide (220) that directs the second optical signal from the second reflective surface (240) of the reflective body (230) to the first communicating device (105).
摘要:
A light-emitting diode (LED) (101). The LED (101) includes a plurality of portions including a p-doped portion (112), an intrinsic portion (114), and a n-doped portion (116). The intrinsic portion (114) is disposed between the p-doped portion (112) and the n-doped portion (116) and forms a p-i junction (130) and an i-n junction (134) The LED (101) also includes a metal-dielectric-metal (MDM) structure (104) including a first metal layer (140), a second metal layer (144), and a dielectric medium disposed between the first metal layer (140) and the second metal layer (144). The metal layers of the MDM structure (104) are disposed about orthogonally to the p-i junction (130) and the i-n junction (134); the dielectric medium includes the intrinsic portion (114); and, the MDM structure (104) is configured to enhance modulation frequency of the LED (101) through interaction with surface plasmons that are present in the metal layers.
摘要:
An electromagnetic resonance device (300) includes an input reflector (310), an output reflector (320), and a periodic dielectric medium (200) (PDM) disposed between the input reflector (310) and the output reflector (320). The input reflector (310) and output reflector (320) are configured to be reflective to radiation having a wavelength of interest. The PDM include a periodic structure having a dielectric periodocity between a first surface (280) and a second surface (290). The dielectric periodicity is configured with a negative refraction for the wavelength of interest. A first radiation (410) is reflected by the input reflector (310) toward the first surface (280) of the PDM, passes through the PDM, and is focused on the output reflector (320) as a second radiation (420). The second radiation (420) is reflected by the output reflector (320) toward the second surface (290) of the PDM, passes through the PDM, and is focused on the input reflector (310) as the first radiation (410).
摘要:
An apparatus (100) for controlling propagation of incident electromagnetic radiation (110) is described, comprising a composite material (102) having electromagnetically reactive cells (106) of small dimension relative to a wavelength of the incident electromagnetic radiation (110). At least one of a capacitive and inductive property of at least one of the electromagnetically reactive cells (106) is temporally controllable to allow temporal control of an associated effective refactive index encountered by the incident electromagnetic radiation (110) while propagating through the composite material (106).