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公开(公告)号：US5751466A
公开(公告)日：1998-05-12
申请号：US584403
申请日：1996-01-11
申请人： Jonathan P. Dowling , Michael Scalora , Mark J. Bloemer , Charles M. Bowden , Rachel J. Flynn , Richard L. Fork , Senter B. Reinhardt, Jr. , Michael D. Tocci
发明人： Jonathan P. Dowling , Michael Scalora , Mark J. Bloemer , Charles M. Bowden , Rachel J. Flynn , Richard L. Fork , Senter B. Reinhardt, Jr. , Michael D. Tocci
CPC分类号： G02F1/3511 , B82Y20/00 , G02B6/1225 , G02B6/2861 , G02F2201/20
摘要： A photonic signal is applied to a photonic bandgap structure having a photonic band edge transmission resonance at the frequency of the photonic signal and having a photonic band edge transmission resonance bandwidth which is at least as wide as the bandwidth of the photonic signal. When a photonic band edge transmission resonance is matched to the photonic signal which is being transmitted, a controllable delay is imparted to the photonic signal without significantly altering the photonic signal itself.
摘要翻译： 光子信号被施加到在光子信号的频率处具有光子带边缘传输谐振的光子带隙结构，并且具有至少与光子信号的带宽一样宽的光子带边缘传输谐振带宽。 当光子带边缘传输谐振与正被传输的光子信号匹配时，对光子信号赋予可控延迟，而不会明显改变光子信号本身。
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2.发明授权Optical switch that utilizes one-dimensional, nonlinear, multilayer dielectric stacks 失效光开关利用一维，非线性，多层电介质叠层
公开(公告)号：US5740287A
公开(公告)日：1998-04-14
申请号：US568728
申请日：1995-12-07
CPC分类号： B82Y20/00 , G02B6/1225 , G02F1/35 , G02B2006/12145 , G02F1/3511
摘要： An optical switch in a one-dimensional multilayer dielectric stack having a photonic band gap, composed of at least two groups of layers of dielectric material whose operating wavelength is near the edge of said photonic band gap. At least one layer of each of the groups is composed of a nonlinear c.sub.3 dielectric material, which creates an intensity-dependent shift in the location of the band gap and produces a dynamical change in the transmissive and reflective properties of the multilayer dielectric stack in response to changes in the intensity of light or the transmittance of electromagnetic radiation passing through the multilayer dielectric stack. The width of the photonic band gap is determined by the differences between the refractive indices of the nonlinear dielectric material and that of the other layers of dielectric material in the multilayer dielectric stack.
摘要翻译： 一种具有光子带隙的一维多层电介质堆叠中的光开关，其由工作波长接近所述光子带隙边缘的至少两组介电材料构成。 每个组中的至少一个层由非线性c3电介质材料组成，其在带隙的位置上产生强度依赖性的偏移，并且响应地产生多层介质叠层的透射和反射特性的动态变化 以改变光的强度或通过多层介质叠层的电磁辐射的透射率。 光子带隙的宽度由非线性介电材料的折射率与多层介质叠层中其它介电材料层的折射率之差决定。
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公开(公告)号：US06392782B1
公开(公告)日：2002-05-21
申请号：US09606225
申请日：2000-06-27
申请人： Mark J. Bloemer , Michael Scalora , Jonathan P. Dowling , Charles M. Bowden , William C. Pittman
发明人： Mark J. Bloemer , Michael Scalora , Jonathan P. Dowling , Charles M. Bowden , William C. Pittman
IPC分类号： G02F103
CPC分类号： G01J3/36 , G01J3/02 , G01J3/0256 , G01J5/10 , G01J2003/1213 , G02B2006/1213
摘要： The photonic band gap (PBG) dual-spectrum sensor utilizes the frequency-selective properties of a photonic band gap device constructed in accordance with this invention to separate incident electromagnetic wave into two frequency bands. The parameters of the PBG device are chosen so that one frequency band is transmitted through the device with low attenuation while the second band is reflected with low attenuation from the front face of the device. This separation of the two frequency bands allows separate detection processes to be performed to recover the information content of the two signals before the information is fused in subsequent signal processing operation. Such a PBG device would be useful in missile seekers that seek to distinguish a target object from its background.
摘要翻译： 光子带隙（PBG）双光谱传感器利用根据本发明构造的光子带隙装置的频率选择性质将入射电磁波分离成两个频带。 选择PBG器件的参数，使得一个频带通过低衰减的器件传输，而第二个频带以来自器件前面的低衰减反射。 两个频带的这种分离允许执行单独的检测处理以在信息在随后的信号处理操作中融合之前恢复两个信号的信息内容。 这种PBG装置在寻求将目标物体与其背景区分开的导弹搜索者中将是有用的。
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公开(公告)号：US5559825A
公开(公告)日：1996-09-24
申请号：US431166
申请日：1995-04-25
CPC分类号： G02F1/3523 , B82Y20/00 , G02B6/1225 , H01S3/0064 , H01S5/105 , Y10S372/703
摘要： A new optical diode is disclosed that permits unidirectional transmission of light, the direction of transmission depending on the direction of incidence. The diode comprises a stack of alternating layers of a low-index material and a high-index material. The layers are arranged within the stack such that there is spatial anisotropy of optical pathlengths in the stack and at least the low-index layers or the high-index layers have an optical nonlinearity, either inherently or by doping. At sufficiently high incident intensifies and appropriate wavelengths, such a diode exhibits partial transmission of input light incident from one direction while reflecting almost totally input light incident from the opposite direction.
摘要翻译： 公开了一种新的光二极管，其允许光的单向传输，根据入射方向的透射方向。 二极管包括低折射率材料和高折射率材料的交替层叠。 这些层被布置在堆叠内，使得在堆叠中存在光路长度的空间各向异性，并且至少低折射率层或高折射率层具有固有地或通过掺杂的光学非线性。 在足够高的入射强度和适当的波长下，这种二极管表现出从一个方向入射的输入光的部分透射，同时反射从相反方向入射的几乎完全输入的光。
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公开(公告)号：US5907427A
公开(公告)日：1999-05-25
申请号：US956112
申请日：1997-10-24
CPC分类号： B82Y20/00 , G02B6/1225 , G02B6/2861
摘要： A photonic band gap structure device and method for delaying photonic signals of a predetermined frequency and a predetermined bandwidth by a predetermined delay is provided. A Fabry-Perot delay line device has several regions of periodically alternating refractive material layers which exhibit a series of photonic band gaps and a periodicity defect region, interposed between the regions of periodically alternating refractive material layers. The Fabry-Perot delay line device imparts a predetermined delay to photonic signals that pass therethrough. The introduction of the periodicity defect region into this photonic band gap structure creates a sharp transmission resonance within the corresponding photonic band gap of the structure and causes at least an order of magnitude improvement in photonic signal delay for a band-edge delay line device of similar size. Variable photonic delays to multiple photonic signals are also generated by this Fabry-Perot delay line device. In addition, a photonic signal delay device based on an optical fiber grating structure is provided.
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6.发明授权Photonic band gap device and method using a periodicity defect region to increase photonic signal delay 失效光子带隙器件和方法使用周期性缺陷区域来增加光子信号延迟公开(公告)号：US06343167B1
公开(公告)日：2002-01-29
申请号：US09250283
申请日：1999-02-16
IPC分类号： G02B634
CPC分类号： B82Y20/00 , G02B6/1225 , G02B6/2861
摘要： A photonic band gap structure device and method for delaying photonic signals of a predetermined frequency and a predetermined bandwidth by a predetermined delay is provided. A Fabry-Perot delay line device has several regions of periodically alternating refractive material layers which exhibit a series of photonic band gaps and a periodicity defect region, interposed between the regions of periodically alternating refractive material layers. The Fabry-Perot delay line device imparts a predetermined delay to photonic signals that pass therethrough. The introduction of the periodicity defect region into this photonic band gap structure creates a sharp transmission resonance within the corresponding photonic band gap of the structure and causes at least an order of magnitude improvement in photonic signal delay for a band-edge delay line device of similar size. Variable photonic delays to multiple photonic signals are also generated by this Fabry-Perot delay line device. In addition, a photonic signal delay device based on an optical fiber grating structure is provided.
摘要翻译： 提供了一种用于将预定频率和预定带宽的光子信号延迟预定延迟的光子带隙结构装置和方法。 法布里 - 珀罗延迟线器件具有周期性地交替的折射材料层的几个区域，其表现出一系列光子带隙和周期性缺陷区域，介于周期性交替的折射材料层的区域之间。 法布里 - 珀罗延迟线装置对通过其中的光子信号施加预定的延迟。 在该光子带隙结构中引入周期性缺陷区域在该结构的对应的光子带隙内产生尖锐的透射谐振，并且对于类似的带边延迟线器件，对于光子信号延迟至少有一个数量级的改善 尺寸。 该法布里 - 珀罗延迟线设备也产生了对多个光子信号的可变光子延迟。 另外，提供了一种基于光纤光栅结构的光信号延迟器件。
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公开(公告)号：US20090310926A1
公开(公告)日：2009-12-17
申请号：US12546309
申请日：2009-08-24
CPC分类号： G02B6/02295 , B82Y20/00 , G02B1/007 , G02B5/08 , G02B6/02304 , G02B6/10
摘要： We have shown that a single layer of a 3D Zero Index Material (ZIM) has omnidirectional reflection properties. In the range between the electric plasma frequency and the magnetic plasma frequency, ZIM reflect radiation for all angles of incidence and polarization with reflectivities of ˜99%. In addition, with increasing angles of incidence, the reflecting band does not shift in frequency but actually widens. The operational bandwidth can be 100% or greater by increasing the separation between the electric and magnetic plasma frequencies. We have also shown that in the spectral region that allows the omnidirectional gap, ZIM can be used as the cladding of hollow waveguides with better performance than traditional hollow waveguides.
摘要翻译： 我们已经表明，单层3D零索引材料（ZIM）具有全向反射特性。 在等离子体等离子体频率与等离子体等离子体频率之间的范围内，ZIM反射辐射为所有入射角和极化，反射率为〜99％。 另外，随着入射角的增加，反射带的频率不会发生变化，而是实际上变宽。 通过增加电和等离子体频率之间的间隔可以使操作带宽达到100％以上。 我们还表明，在允许全向间隙的光谱区域中，ZIM可以被用作具有比传统空心波导更好性能的空心波导的包层。
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公开(公告)号：US07412144B2
公开(公告)日：2008-08-12
申请号：US11188062
申请日：2005-07-22
IPC分类号： G02B6/10
CPC分类号： G02B6/1225 , B82Y20/00 , G02F1/065 , G02F2202/32
摘要： A waveguide has upper and lower cladding regions. A core of the waveguide made of a non-linear optical polymer is positioned between the upper and lower cladding regions. A first electrode is connected to the upper cladding region and a second electrode is connected to the lower cladding region. The upper cladding region and the lower cladding region are made of photonic band gap materials and have multiple periods of cladding layers with each period having a first layer having a linear refractive index of n1 and each period having a second layer having a linear refractive index of n2. The waveguide allows for minimal distances to exist between the electrodes while allowing for virtual lossless cm-long transmission of propagating light. By applying a voltage to the electrodes, the propagated light can be modulated.
摘要翻译： 波导具有上和下包层区域。 由非线性光学聚合物制成的波导的芯部位于上部和下部包层区域之间。 第一电极连接到上包层区域，第二电极连接到下包层区域。 上包层区域和下包层区域由光子带隙材料制成并且具有多个包覆层的周期，每个周期具有线性折射率为n 1的第一层，并且每个周期具有 第二层具有n 2的线性折射率。 波导允许在电极之间存在最小的距离，同时允许传播光的虚拟无损的cm长的透射。 通过向电极施加电压，可以调制传播的光。
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9.发明授权Photonic signal frequency up and down-conversion using a photonic band gap structure 失效使用光子带隙结构的光子信号频率上下转换公开(公告)号：US06744552B2
公开(公告)日：2004-06-01
申请号：US09742295
申请日：2000-12-22
IPC分类号： G02F202
CPC分类号： B82Y20/00 , G02B6/02057 , G02B6/1225 , G02F1/3534 , G02F1/37 , G02F1/3775 , G02F2201/30 , G02F2202/32
摘要： A photonic band gap (PBG) device is provided for frequency up and/or down-converting first and second photonic signals incident on the device to produce a down-converted output photonic signal. When the first and second incident photonic signals have respective first and second frequencies &ohgr;3 and &ohgr;2, the down-converted photonic signal has a third frequency &ohgr;1=&ohgr;3−&ohgr;2. When the first incident field has a frequency &ohgr;1, the first up-converted photonic signal has a second frequency &ohgr;2. The second up-converted photonic signal has a third frequency &ohgr;3=&ohgr;1+&ohgr;2. Thus, the PBG device can be used to generate coherent near- and mid-IR signals by frequency down-converting photonic signals from readily available photonic signal sources, or red, blue, and ultraviolet signals by up-converting the same readily available photonic signal sources.
摘要翻译： 提供了一种光子带隙（PBG）器件，用于对入射到器件上的第一和第二光子信号进行上变频和/或下变频以产生下变频的输出光子信号。 当第一和第二入射光子信号具有相应的第一和第二频率ω3和ω2时，下转换的光子信号具有第三频率ω1 =ω3-ω2。 当第一入射场具有频率ω1时，第一上变频光子信号具有第二频率ω2。 第二次上转换的光子信号具有第三频率ω3=ω1+ω2。 因此，PBG器件可以用于通过从容易获得的光子信号源或红色，蓝色和紫外信号中的光子信号降频转换相同容易获得的光子信号而产生相干近红外信号和中红外信号 来源。
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公开(公告)号：US07580604B2
公开(公告)日：2009-08-25
申请号：US11278521
申请日：2006-04-03
CPC分类号： G02B6/02295 , B82Y20/00 , G02B1/007 , G02B5/08 , G02B6/02304 , G02B6/10
摘要： We have shown that a single layer of a 3D Zero Index Material (ZIM) has omnidirectional reflection properties. In the range between the electric plasma frequency and the magnetic plasma frequency, ZIM reflect radiation for all angles of incidence and polarization with reflectivities of ˜99%. In addition, with increasing angles of incidence, the reflecting band does not shift in frequency but actually widens. The operational bandwidth can be 100% or greater by increasing the separation between the electric and magnetic plasma frequencies. We have also shown that in the spectral region that allows the omnidirectional gap, ZIM can be used as the cladding of hollow waveguides with better performance than traditional hollow waveguides.
摘要翻译： 我们已经表明，单层3D零索引材料（ZIM）具有全向反射特性。 在等离子体等离子体频率与等离子体等离子体频率之间的范围内，ZIM反射辐射为所有入射角和极化，反射率为〜99％。 另外，随着入射角的增加，反射带的频率不会发生变化，而是实际上变宽。 通过增加电和等离子体频率之间的间隔可以使操作带宽达到100％以上。 我们还表明，在允许全向间隙的光谱区域中，ZIM可以被用作具有比传统空心波导更好性能的空心波导的包层。
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