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1. 发明申请

US20060280403A1 Photonic Crystal Reflectors / Filters and Displacement Sensing Applications 失效
标题翻译：光子晶体反射器/滤波器和位移感应应用
公开(公告)号：US20060280403A1
公开(公告)日：2006-12-14
申请号：US11464781
申请日：2006-08-15
申请人： Wonjoo Suh , Mehmet Yanik , Olav Solgaard , Shanhui Fan
发明人： Wonjoo Suh , Mehmet Yanik , Olav Solgaard , Shanhui Fan
IPC分类号： G02B6/26
CPC分类号： B82Y20/00 , G02B6/1225
摘要： 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.
摘要翻译：我们引入了由耦合光子晶体板组成的机械可调光子晶体结构。使用分析理论和第一原理有限差分时域仿真，我们证明了通常在这种结构上入射的光的透射和反射系数可以对板之间的间距的纳米尺度变化高度敏感。此外，通过具体配置光子晶体结构，可以保持高灵敏度，尽管有显着的制造相关障碍。我们预计这种结构在微机械可调光学传感器和滤波器中起重要作用。

2. 发明申请

US20060115212A1 Ultra-slow down and storage of light pulses, and altering of pulse spectrum 失效
标题翻译：光脉冲的超慢减速和脉冲光谱的改变
公开(公告)号：US20060115212A1
公开(公告)日：2006-06-01
申请号：US11001492
申请日：2004-11-30
申请人： Mehmet Yanik , Shanhui Fan
发明人： Mehmet Yanik , Shanhui Fan
IPC分类号： G02B6/26
CPC分类号： B82Y20/00 , G02B6/1225
摘要： Light pulses can be stopped and stored coherently, with an all-optical process that involves an adiabatic and reversible pulse bandwidth compression occurring entirely in the optical domain. Such a process overcomes the fundamental bandwidth-delay constraint in optics, and can generate arbitrarily small group velocities for light pulses with a given bandwidth, without the use of any coherent or resonant light-matter interactions. This is accomplished only by small refractive index modulations performed at moderate speeds and has applications ranging from quantum communications and computing to coherent all-optical memory devices. A complete time reversal and/or temporal/spectral compression and expansion operation on any electromagnetic field is accomplished using only small refractive index modulations and linear optical elements. This process does not require any nonlinear multi-photon processes such as four-wave mixing and thus can be implemented using on-chip tunable microcavity complexes in photonic crystals. The tuning process requires only small refractive index modulations, and moderate modulation speeds without requiring any high-speed electronic sampling.
摘要翻译：光脉冲可以被停止并相干地存储，其全光学过程涉及完全在光学域中发生的绝热和可逆的脉冲带宽压缩。这种过程克服了光学中的基本带宽延迟约束，并且可以为具有给定带宽的光脉冲产生任意小的组速度，而不使用任何相干或共振的光物质相互作用。这仅通过在中等速度下执行的小折射率调制来实现，并且具有从量子通信和计算到相干全光存储器件的应用。在任何电磁场上的完全时间反转和/或时间/频谱压缩和扩展操作仅使用小的折射率调制和线性光学元件来实现。该过程不需要诸如四波混频的任何非线性多光子过程，因此可以使用光子晶体中的片上可调谐微腔复合体来实现。调谐过程只需要较小的折射率调制和适度的调制速度，而不需要任何高速电子采样。

3. 发明申请

US20060062507A1 Bistable all optical devices in non-linear photonic crystals 审中-公开
标题翻译：双稳态非线性光子晶体中的所有光学器件
公开(公告)号：US20060062507A1
公开(公告)日：2006-03-23
申请号：US11226713
申请日：2005-09-13
申请人： Mehmet Yanik , Shanhui Fan , Marin Soljacic , John Joannopoulos
发明人： Mehmet Yanik , Shanhui Fan , Marin Soljacic , John Joannopoulos
IPC分类号： G02B6/26
CPC分类号： G02F3/024 , B82Y20/00 , G02B6/1225 , G02F1/3511 , G02F1/3515 , G02F2202/32
摘要： A bistable photonic crystal configuration comprises a waveguide sided coupled to a single-mode cavity. This configuration can generate extremely high contrast between the bistable states in its transmission with low input power. All-optical switching action is also achieved in a nonlinear photonic crystal cross-waveguide geometry, in which the transmission of a signal can be reversibly switched on and off by a control input, or irreversibly switched, depending on the input power level.
摘要翻译：双稳态光子晶体结构包括耦合到单模腔的波导侧。该配置可以在其具有低输入功率的传输中的双稳态之间产生极高的对比度。全光开关动作也可以在非线性光子晶体交叉波导几何中实现，其中根据输入功率电平，可以通过控制输入或者不可逆地切换信号来传输信号。

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