-
Patent Agency Ranking
公开(公告)号：US20050160791A1
公开(公告)日：2005-07-28
申请号：US10760633
申请日：2004-01-20
Applicant: Andy Kung
Inventor： Andy Kung
CPC classification number: G01N33/0039 , G01N21/05 , G01N21/1702 , G01N21/33 , G01N2021/1704 , Y02A50/247
Abstract: A photoacoustic ozone detector includes an acoustic chamber, an ultraviolet light source, and a detector to detect audio signals. The acoustic chamber has an inlet for receiving a gas mixture containing ozone and an outlet for removing the gas mixture from the chamber. The ultraviolet light source generates ultraviolet light having wavelengths shorter than 400 nm, and the ultraviolet light is modulated at a modulation frequency substantially equal to a resonant frequency of the acoustic chamber. The ultraviolet light source is positioned relative to the acoustic chamber so that the ultraviolet light passes through the gas mixture in the acoustic chamber. The detector detects an audio signal in the acoustic chamber having a frequency substantially equal to the modulation frequency of the ultraviolet light. A signal processor generates an output indicative of a concentration of the ozone in the gas mixture based on the detected audio signal.
Abstract translation: 光声臭氧检测器包括声室，紫外光源和用于检测音频信号的检测器。 声学室具有用于接收含有臭氧的气体混合物的入口和用于从气室中除去气体混合物的出口。 紫外光源产生波长短于400nm的紫外光，紫外光以基本上等于声室谐振频率的调制频率被调制。 紫外光源相对于声室定位，使得紫外光通过声室中的气体混合物。 检测器检测声室中的音频信号，其频率基本上等于紫外光的调制频率。 信号处理器基于检测到的音频信号产生指示气体混合物中臭氧浓度的输出。
-
公开(公告)号：US07480045B2
公开(公告)日：2009-01-20
申请号：US11554713
申请日：2006-10-31
Applicant: Andy Kung , Tse-Luen Wee , Shu-Wei Huang
Inventor： Andy Kung , Tse-Luen Wee , Shu-Wei Huang
CPC classification number: G01J3/44 , G01N21/6458 , G01N21/65 , G01N2021/653 , G01N2021/656 , G02B21/16
Abstract: A method for imaging a sample is described. The sample is characterized by a limit on incident optical energy absorbed over a given time period. The method includes providing at least one input optical wave that includes pulses that each have a full-width half-maximum time duration of more than 100 picoseconds and a pulse energy sufficiently large such that a sufficient number of consecutive pulses absorbed by the sample would exceed the limit. The method also includes directing the input optical wave to focus on a first portion of the sample; detecting energy from an output optical wave generated from a nonlinear optical interaction in the first portion of the sample with the input optical wave; and generating a representation of the first portion of the sample based on the detected energy from the output optical wave.
Abstract translation: 描述了用于对样品进行成像的方法。 样品的特征在于在给定时间段内吸收的入射光能的限制。 该方法包括提供包括脉冲的至少一个输入光波，每个脉冲具有大于100皮秒的全宽度半最大持续时间和足够大的脉冲能量，使得由样本吸收的足够数量的连续脉冲将超过 极限。 该方法还包括引导输入光波聚焦在样品的第一部分上; 从具有输入光波的样品的第一部分中的非线性光学相互作用产生的输出光波中检测能量; 以及基于来自输出光波的检测能量生成样本的第一部分的表示。
-
公开(公告)号：US20080100834A1
公开(公告)日：2008-05-01
申请号：US11554713
申请日：2006-10-31
Applicant: Andy Kung , Tse-Luen Wee , Shu-Wei Huang
Inventor： Andy Kung , Tse-Luen Wee , Shu-Wei Huang
IPC: G01J3/44
CPC classification number: G01J3/44 , G01N21/6458 , G01N21/65 , G01N2021/653 , G01N2021/656 , G02B21/16
Abstract: A method for imaging a sample is described. The sample is characterized by a limit on incident optical energy absorbed over a given time period. The method includes providing at least one input optical wave that includes pulses that each have a full-width half-maximum time duration of more than 100 picoseconds and a pulse energy sufficiently large such that a sufficient number of consecutive pulses absorbed by the sample would exceed the limit. The method also includes directing the input optical wave to focus on a first portion of the sample; detecting energy from an output optical wave generated from a nonlinear optical interaction in the first portion of the sample with the input optical wave; and generating a representation of the first portion of the sample based on the detected energy from the output optical wave.
Abstract translation: 描述了用于对样品进行成像的方法。 样品的特征在于在给定时间段内吸收的入射光能的限制。 该方法包括提供包括脉冲的至少一个输入光波，每个脉冲具有大于100皮秒的全宽度半最大持续时间和足够大的脉冲能量，使得由样本吸收的足够数量的连续脉冲将超过 极限。 该方法还包括引导输入光波聚焦在样品的第一部分上; 从具有输入光波的样品的第一部分中的非线性光学相互作用产生的输出光波中检测能量; 以及基于来自输出光波的检测能量生成样本的第一部分的表示。
-
公开(公告)号：US07069769B2
公开(公告)日：2006-07-04
申请号：US10760633
申请日：2004-01-20
Applicant: Andy Kung
Inventor： Andy Kung
IPC: G01N21/00
CPC classification number: G01N33/0039 , G01N21/05 , G01N21/1702 , G01N21/33 , G01N2021/1704 , Y02A50/247
Abstract: A photoacoustic ozone detector includes an acoustic chamber, an ultraviolet light source, and a detector to detect audio signals. The acoustic chamber has an inlet for receiving a gas mixture containing ozone and an outlet for removing the gas mixture from the chamber. The ultraviolet light source generates ultraviolet light having wavelengths shorter than 400 nm, and the ultraviolet light is modulated at a modulation frequency substantially equal to a resonant frequency of the acoustic chamber. The ultraviolet light source is positioned relative to the acoustic chamber so that the ultraviolet light passes through the gas mixture in the acoustic chamber. The detector detects an audio signal in the acoustic chamber having a frequency substantially equal to the modulation frequency of the ultraviolet light. A signal processor generates an output indicative of a concentration of the ozone in the gas mixture based on the detected audio signal.
Abstract translation: 光声臭氧检测器包括声室，紫外光源和用于检测音频信号的检测器。 声学室具有用于接收含有臭氧的气体混合物的入口和用于从气室中除去气体混合物的出口。 紫外光源产生波长短于400nm的紫外光，紫外光以基本上等于声室谐振频率的调制频率被调制。 紫外光源相对于声室定位，使得紫外光通过声室中的气体混合物。 检测器检测声室中的音频信号，其频率基本上等于紫外光的调制频率。 信号处理器基于检测到的音频信号产生指示气体混合物中臭氧浓度的输出。
-
公开(公告)号：US20050243876A1
公开(公告)日：2005-11-03
申请号：US10834755
申请日：2004-04-29
Applicant: Andy Kung
Inventor： Andy Kung
CPC classification number: G02F1/39
Abstract: A novel optical parametric oscillator (OPO) directs pulsed optical energy at a first wavelength towards a nonlinear crystal using a wavelength-selective isolation mirror which substantially reflects incident optical energy at the first wavelength, but is substantially transparent to optical energy at a second wavelength. In response to the pulsed optical energy, the nonlinear crystal generates a beam of optical energy at a second wavelength. The beam of generated optical energy is reinforced using an OPO cavity that is formed by the isolation mirror, a diffraction grating, a highly reflecting mirror, and a tuning mirror. The highly reflecting mirror and the tuning mirror provide high reflectivity at the second wavelength. The tuning mirror, positioned so as to at least partially face the diffraction grating, provides an optional wavelength tuning mechanism when the wavelength of the generated optical energy needs to be changed or adjusted. The diffraction grating reflects at least a portion of the beam of generated optical energy out of the OPO cavity as the zeroth order of the diffraction grating. The pump beam passes once through nonlinear crystal, strikes the diffraction grating at an angle of incidence of approximately 87 to 89.5 degrees, and is reflected out of the OPO cavity along with the generated optical energy. An optical filter deflects the pump beam that is reflected out of the OPO cavity, but is substantially transparent to the beam of generated optical energy. An iris aperture, positioned beyond the optical filter, spatially selects the center portion of the beam of generated optical energy from the OPO cavity. The center portion of the beam has a desired narrow bandwidth for use in any of a variety of system applications, so as to provide a broadly tunable, narrow-bandwidth source of pulsed optical radiation.
Abstract translation: 一种新颖的光参量振荡器（OPO）使用波长选择性隔离镜将第一波长的脉冲光能量引导到非线性晶体，所述波长选择性隔离镜基本上反射第一波长的入射光能，但对第二波长的光能基本上是透明的。 响应于脉冲光能，非线性晶体在第二波长处产生光能束。 使用由隔离镜，衍射光栅，高反射镜和调光镜形成的OPO腔来增强所产生的光能的光束。 高反射镜和调光镜在第二波长处提供高反射率。 定位成至少部分地面对衍射光栅的调谐镜在需要改变或调节所产生的光能的波长时提供可选的波长调谐机构。 衍射光栅将所产生的光能束的至少一部分反射出OPO腔，作为衍射光栅的零级。 泵浦光束一次通过非线性晶体，以约87至89.5度的入射角撞击衍射光栅，并与所产生的光能一起反射出OPO腔。 光学滤波器使从OPO空腔反射出来的泵浦光束偏转，但对于所产生的光能的光束基本上是透明的。 位于光学滤波器之外的虹膜孔径空间地选择来自OPO腔的产生的光能束的中心部分。 波束的中心部分具有用于各种系统应用中的任一种的期望的窄带宽，以便提供广泛可调谐的窄带宽的脉冲光辐射源。
-
-
-
-
Search Results
5
records
(took 0.015 seconds)
