RU2015126334A - DIFFRACTION POLYCHROMATOR WITH CROSSED DISPERSION - Google Patents

DIFFRACTION POLYCHROMATOR WITH CROSSED DISPERSION Download PDF

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Publication number
RU2015126334A
RU2015126334A RU2015126334A RU2015126334A RU2015126334A RU 2015126334 A RU2015126334 A RU 2015126334A RU 2015126334 A RU2015126334 A RU 2015126334A RU 2015126334 A RU2015126334 A RU 2015126334A RU 2015126334 A RU2015126334 A RU 2015126334A
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RU
Russia
Prior art keywords
diffraction
polychromator
concave
dispersion
coefficient
Prior art date
Application number
RU2015126334A
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Russian (ru)
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RU2611712C2 (en
Inventor
Александр Васильевич Савушкин
Юрий Сергеевич Морозов
Original Assignee
Акционерное общество "Государственный оптический институт им. С.И. Вавилова"
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Application filed by Акционерное общество "Государственный оптический институт им. С.И. Вавилова" filed Critical Акционерное общество "Государственный оптический институт им. С.И. Вавилова"
Priority to RU2015126334A priority Critical patent/RU2611712C2/en
Publication of RU2015126334A publication Critical patent/RU2015126334A/en
Application granted granted Critical
Publication of RU2611712C2 publication Critical patent/RU2611712C2/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/12—Generating the spectrum; Monochromators
    • G01J3/18—Generating the spectrum; Monochromators using diffraction elements, e.g. grating
    • G01J3/1809—Echelle gratings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/12—Generating the spectrum; Monochromators
    • G01J3/18—Generating the spectrum; Monochromators using diffraction elements, e.g. grating
    • G01J3/24—Generating the spectrum; Monochromators using diffraction elements, e.g. grating using gratings profiled to favour a specific order

Landscapes

  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Spectrometry And Color Measurement (AREA)

Claims (6)

Дифракционный полихроматор со скрещенной дисперсией, содержащий входную щель, решетку эшелле, вогнутую дифракционную решетку - разделитель порядков, матричный приемник излучения, отличающийся тем, что, с целью увеличения светопропускания, дифракционная решетка эшелле выполнена вогнутой с переменным шагом нарезки, коэффициент неравномерности которой определен по формуле:A diffraction cross-dispersion polychromator containing an entrance slit, an echelle grating, a concave diffraction grating — an order separator, a radiation matrix detector, characterized in that, in order to increase light transmission, the echelle grating is made concave with a variable cutting step, the unevenness coefficient of which is determined by the formula : А=(COSβ2-COSβ1)/(SINβ2-SINβ1),A = (COSβ2-COSβ1) / (SINβ2-SINβ1), где β1 и β2 - углы дифракции, соответствующие крайним положениям длин волн в строчке,where β1 and β2 are the diffraction angles corresponding to the extreme positions of the wavelengths in the line, А=μ⋅R,A = μ⋅R, где μ - линейная составляющая коэффициента неравномерности шага решетки,where μ is the linear component of the coefficient of non-uniformity of the lattice pitch, R - радиус кривизны вогнутой решетки.R is the radius of curvature of the concave lattice.
RU2015126334A 2015-07-01 2015-07-01 Diffractive polychromator with crossed dispersion RU2611712C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2015126334A RU2611712C2 (en) 2015-07-01 2015-07-01 Diffractive polychromator with crossed dispersion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2015126334A RU2611712C2 (en) 2015-07-01 2015-07-01 Diffractive polychromator with crossed dispersion

Publications (2)

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RU2015126334A true RU2015126334A (en) 2017-01-10
RU2611712C2 RU2611712C2 (en) 2017-02-28

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RU2015126334A RU2611712C2 (en) 2015-07-01 2015-07-01 Diffractive polychromator with crossed dispersion

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU987406A1 (en) * 1980-06-27 1983-01-07 Предприятие П/Я Р-6681 Double diffraction monochromator with zero dispersion
SU1681637A1 (en) * 1989-11-14 1999-08-20 Е.А. Соколова DOUBLE DIFFRACTION MONOCHROMATOR
DD292078A5 (en) * 1990-02-15 1991-07-18 ���k���������������@����@�����@���@�������������k�� FCHELLE polychromator

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RU2611712C2 (en) 2017-02-28

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Effective date: 20180702