公开(公告)号：US3748040A

公开(公告)日：1973-07-24

申请号：US3748040D

申请日：1971-11-01

Applicant: CARY INSTRUMENTS

Inventor： HAWES R

IPC: G01J3/04 ,  G01J3/18

CPC classification number: G01J3/04

Abstract: A high resolution or high maximum bandwidth monochromator is provided with certain control means for controlling one jaw of an intermediate slit pair, and other control means for independently controlling the jaws in each pair of entrance, exit and intermediate slits, the monochromator being useful for exploratory research work as well as routine analysis.

Abstract translation: 高分辨率或高最大带宽单色仪具有用于控制中间狭缝对的一个爪的某些控制装置和用于独立地控制每对入口，出口和中间狭缝中的钳口的其他控制装置，单色器可用于探索 研究工作以及常规分析。

公开(公告)号：US3737235A

公开(公告)日：1973-06-05

申请号：US3737235D

申请日：1972-02-10

Applicant: CARY INSTRUMENTS

Inventor： HAWES R

IPC: G01J3/453 ,  G01N21/19 ,  G01N21/40

CPC classification number: G01J3/4537 ,  G01N21/19

Abstract: Dichroism measurement apparatus includes interferometer means for processing linearly polarized source radiation to provide a beam characterized, for each wavelength, by ellipticity that alternates between left and right circular polarization and between which the beam polarization becomes linear in one direction as the ellipticity alternates from left to right circular polarization, and linear in the orthogonal direction as the ellipticity alternates from right to left circular polarization, the characteristic frequency Nu a of such alternation varying as a function of the wavelength. The interferometer means comprises relatively fixed and movable prisms, both having axes at 45* to the linear polarization direction, and actuating means for effecting such relative movement of said prisms to control the frequencies Nu a.

Abstract translation: 二色性测量装置包括用于处理线性偏振源辐射的干涉仪装置，用于为每个波长提供以在左和右圆偏振之间交替的椭圆率为特征的光束，并且当光束偏振在一个方向上变成线性时，椭圆率从左向左 右圆偏振，并且随着椭圆率从右到左圆偏振交替，在正交方向上线性，这种交替的特征频率nu a作为波长的函数而变化。 干涉仪装置包括相对固定和可移动的棱镜，两者都具有与线性偏振方向成45°的轴线，以及用于实现所述棱镜的这种相对运动以控制频率nu a的致动装置。

公开(公告)号：US3728030A

公开(公告)日：1973-04-17

申请号：US3728030D

申请日：1970-06-22

Applicant: CARY INSTRUMENTS

Inventor： HAWES R

IPC: G01J3/453 ,  G01N21/19 ,  G01B9/02

CPC classification number: G01J3/4537 ,  G01N21/19

Abstract: Fourier spectroscopy is used in the measurement of circular dichroism, the method involving the use of an interference polarization modulator which is characterized by production of negligible amplitude modulation in the absence of dichroism in the optical train that follows the modulator and in the detector. Either linear or circular dichroism in that region of the instrument will convert the polarization modulation into amplitude modulation. The polarization modulation is characterized by a different frequency for each wavelength of the radiation, thus the signals caused by the interaction of the radiation with dichroic sample may all be recorded simultaneously and may subsequently be ''''unscrambled'''' to derive the inverse Fourier transform of the ensemble of frequencies constituting the complete signal, and thus obtaining a transmission spectrum corresponding to the dichroism. The transmission spectrum in turn, in the case of the circular dichroism, may be converted into dichroism by dividing by the ordinary transmission spectrum (corresponding to ordinary absorption) which may be derived by ordinary Fourier spectroscopy.

Abstract translation: 傅立叶光谱法用于测量圆二色性，该方法涉及使用干涉偏振调制器，其特征在于在跟随调制器和检测器的光学列中不存在二色性的情况下产生可忽略的幅度调制。 仪器区域中的线性或圆二色性将将偏振调制转换为幅度调制。 偏振调制的特征在于对于辐射的每个波长的不同频率，因此由辐射与二向色样本的相互作用引起的信号可以同时被记录，并且可以随后被“解扰”以导出整体的逆傅立叶变换 的频率构成完整信号，从而获得对应于二色性的透射光谱。 在圆二色性的情况下，透射光谱又可以通过除以通过普通傅立叶光谱法得到的普通透射光谱（对应于普通吸收）而转换为二色性。