Options and accessories

Light collecting accessories

Wide-range condenser PS-2

Wide-range condenser PS-2 (unit for light collection in a wide spectral range)

Designed for collecting light from a sample within a wide spectral range and its effective transmission into an optical fiber or onto an entrance slit of a spectral device.
Consists of two achromatic UV-transparent objectives.

Spectral range:                                           200nm-2000nm
Light collection angle:                                 22 degr.
Front\back flange focal distance                 38.5 mm
Entrance\exit aperture ratio F#                   1:3

Wide-aperture condenser PS-3

Wide-aperture condenser PS-3 (wide-aperture light collection unit)

Designed for collecting light from a sample within a wide aperture angle and its further transmission into an optical fiber or onto an entrance slit of a spectral device. Consists of a meniscus and two achromatic objectives

Spectral range:                         preferable     400nm-1000nm
Acceptable     400nm-1700nm
Light collection angle                                     37 degr.
Front focal length                                           29.5 mm
Entrance aperture ratio F#                             1.5
Back focal length                                           100 mm
Exit aperture ratio F#                                      3.3

Cassegrain objective CT

Cassegrain objective CT

Contains a focusing mirror system and UV-protective glass (BaF2 for IR-version) Spectral range.

Spectral range                                          190nm – 2μm
                                                 (400nm-8μm for IR-version)
Focal length                                               285mm
Aperture ratio F#                              1:4.4
Focusing range                                          ¥. . . 3.5m,
Linear field in the image space                 10mm
Diameter 81mm, length 165mm, connector SMA-905

CT objective can be connected directly to the entrance slit of the М266, М833, MSA-130 monochromators.

Achromatic fiber adapter FA-1

Achromatic fiber adapter FA-1

Contains a two-lens achromatic objective (diameter 15mm, focal length  44.5mm).

Spectral range:     190nm-2000nm

Aperture ratio  F# 1:3

3D alignment.
SMA-905 connector

Achromatic fiber adapter FA-2

Achromatic fiber adapter FA-2

Contains a two-lens achromatic objective (diameter 15mm, focal length  44.5mm).
Spectral range:     190nm-2000nm
Aperture ratio  F# 1:3
Axial alignment.
SMA-905 connector

Diffuse attenuator FA-3

Diffuse attenuator FA-3

Contains two diffuse UV-silica substrates & SMA-905 connector.
Axial adjustment of the fiber end relative to dispersing elements.
Spectral range:     190nm-2000nm

Aperture Matching Systems

Aperture Matching Adapter AFA

Aperture Matching Adapter AFA.

Designed to match apertures of an optical fiber and a monochromator in order to reduce stray light and optimize light throughput.
Is mounted on the entrance slit of the М266, М833, and MSA-130 monochromators or on the Filter Wheel.
Contains two achromatic objectives and SMA-905 connector.

Provides axial alignment of the fiber end and adjustment of the distance between objectives, which allows adjusting output aperture ratio F# within the range from 1:3.5 to 1:8.

Optical Slits

Crossed entrance slit SXM-1

Crossed entrance slit SXM-1
(adjustable pinhole)

Micrometer-driven with opening width adjustable from 7μm to 2000μm (diagonal of the square aperture) or from 5μm to 1414 μm (side of the square aperture).
Microscrew reading accuracy +/- 1 μm

Step                                         0.125 μm.

Detector adapters for М266/М833

Detector adapter for М266

Detector adapter for М266

The detector adapter for the M266 ensures precise axial alignment (focusing) of the detector.

In addition to axial alignment/focusing possibilities the detector adapter for the M833 allows adjusting tilt of the detector plane for obtaining the best line quality in a wide spectral range.

Sight

Achromatic lens SIGHT

Is mounted onto the exit slit & intended for visual observation of spectral line position relative to the center of the exit slit.
Spectral range:    200nm-2000nm

The Sight is included into the standard set of supply of the MSA-130 monochromator.

The Sight is recommended for use with the М266, M833 in case of operation in the monochromator mode (with the exit slit, without an array detector). When the instrument is operated in the spectrograph mode (with an array detector, without the exit slit) the Sight is not used.

Optical Fibers

VUV for spectral range of 190nm-1250nm,
FWF for spectral range of 300nm-2500nm.
Diameter 0,6mm or 0,4mm, length 1m (standard), 2m, 3m and 5m (option).
SMA-905 connector.

1m-optical fiber is included into the standard set of supply of the S100, S150, S41, SDH spectrometers.