公开(公告)号：EP3532812A1

公开(公告)日：2019-09-04

申请号：EP17864360.7

申请日：2017-10-25

申请人： University Of Virginia Patent Foundation

发明人： PATE, Brooks Hart

IPC分类号： G01J1/16 ,  G01J3/30 ,  G01J3/447 ,  G01N21/25 ,  G01N23/22 ,  H01J23/20 ,  H01J49/02

公开(公告)号：EP3158303A2

公开(公告)日：2017-04-26

申请号：EP15809685.9

申请日：2015-06-16

申请人： University Of Virginia Patent Foundation

发明人： PATE, Brooks Hart ,  STREBER, Amanda ,  HARRIS, Brent

IPC分类号： G01J3/42

CPC分类号： G01N21/3586 ,  G01J3/10 ,  G01J3/42 ,  G01N2021/3595

摘要： Apparatus and techniques for broadband Fourier transform spectroscopy can include frequency hopping spread-spectrum spectroscopy approaches. For example, an excitation source power can be spread over a specified frequency bandwidth, such as by applying a sequence of short, transform-limited pulses to a sample. Each pulse can include a specified carrier frequency, and a corresponding bandwidth of the individual pulse can be determined by a frequency domain representation when Fourier transformed. A series of short excitation pulses can be used to create an excitation sequence, such as to deliver a specified or desired amount of power to the sample, such as by having the excitation source enabled for a time comparable to a free induction decay (FID) dephasing time.

摘要翻译： 用于宽带傅里叶变换光谱学的设备和技术可以包括跳频扩频光谱学方法。 例如，激励源功率可以分布在指定的频率带宽上，例如通过对样本施加一系列短的，变换受限的脉冲。 每个脉冲可以包括特定的载波频率，并且当经过傅立叶变换时，可以通过频域表示来确定单个脉冲的相应带宽。 可以使用一系列短激发脉冲来产生激发序列，例如通过使激发源在与自由感应衰减（FID）相当的时间内被启用而向样本传递指定或期望量的功率， 消极时间。

公开(公告)号：EP3008749A1

公开(公告)日：2016-04-20

申请号：EP14811595.9

申请日：2014-06-12

申请人： University of Virginia Patent Foundation

发明人： PATE, Brooks Hart ,  STEBER, Amanda ,  HARRIS, Brent ,  LEHMANN, Kevin K.

IPC分类号： H01J49/36

CPC分类号： G01N22/00 ,  G01J3/453 ,  G01N21/3586

摘要： Examples herein include apparatus and techniques that can be used to perform rotational spectroscopy on gas-phase samples. Such techniques can include using a spectrometer providing frequency synthesis and pulse modulation to provide excitation (e.g., pump or probe pulses) of a gas-phase sample at mm-wave frequencies. Synthesis of such mm-wave frequencies can include use of a frequency multiplier, such as an active multiplier chain (AMC). A free induction decay (FID) elicited by the excitation or other time-domain information can be obtained from the sample, such as down-converted and digitized. A frequency domain representation of the digitized information, such as a Fourier transformed representation, can be used to provide a rotational spectrum.