The experimental setup is illustrated in Fig. 2 . The light source was a collimated diode-pumped solid-state laser module (532 nm, 4.5 mW, CPS532, Thorlabs, New Jersey, USA). After beam expansion through two achromatic lenses (AC254-030-A-ML; AC254-075-A-ML, Thorlabs, New Jersey, USA), the laser light was spatially modulated using a DMD (DLP7000, Texas Instruments, Texas, USA) and then projected onto the proximal facet of a MMF (105 μm, 0.22 NA, 1 m, M43L01, Thorlabs, New Jersey, USA) via a tube lens (AC254-050-A-ML, Thorlabs, New Jersey, USA) and an objective (20×, 0.4 NA, RMS20X, Thorlabs, New Jersey, USA). The light illuminated area on the DMD included 32 × 32 independent input modes, with each 2 × 2 micromirrors grouped as one mode. An objective (20×, 0.4 NA, RMS20X, Thorlabs, New Jersey, USA) and a tube lens (AC254-0100-A-ML, Thorlabs, New Jersey, USA) were used to magnify the output light beam before it was captured by a complementary metal-oxide-semiconductor (CMOS) camera (C11440-22CU01, Hamamatsu Photonics, Shizuoka, Japan) with a frame rate of 200 frames per second (fps) for MMF characterisation.
Ac254 075 a ml
Manufactured by Thorlabs
Sourced in United States
The AC254-075-A-ML is a N-BK7 plano-convex lens with a focal length of 75 mm and a diameter of 25.4 mm. It is designed for use in a variety of optical applications, such as beam collimation, focusing, and imaging.
Automatically generated - may contain errors
Lab products found in correlation
Ac254 030 a ml, by Thorlabs (2 mentions)
Dlp7000, by Texas Instruments (2 mentions)
Ac254 050 a ml, by Thorlabs (2 mentions)
Rms20x, by Thorlabs (2 mentions)
Ac254 0100 a ml, by Thorlabs (2 mentions)
C11440 22cu01, by Hamamatsu Photonics (2 mentions)
Cps532, by Thorlabs (2 mentions)
Ac254 150 a ml, by Thorlabs (1 mentions)
3 protocols using ac254 075 a ml
1
Spatially Modulated Laser Illumination for Multimode Fiber Characterization
2
Rotating Particle Dynamics Measurement
Check if the same lab product or an alternative is used in the 5 most similar protocols
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The OMC experiment is schematically
depicted in Figure S2 of theSupporting Information . In the middle of the setup, a square glass cuvette containing a
particle solution is located. Around the cuvette four electromagnets
are positioned in a cross arrangement. With this quadrupole setup,
in-plane rotating magnetic fields are created by flowing a sinusoidal
current through each of the four coils with a phase lag of 90°
between neighboring coils, using a homemade LabVIEW program. A 660
nm laser (Single Mode Hitachi HL6545MG laser, Thorlabs) is focused
into a square glass cuvette containing the particle solution by a
positive lens (AC254-150-A-ML f = 150.0 mm lens,
Thorlabs). The light scattered by the rotating particles (monomers,
dimers, trimers, etc.) is collected at an angle of 90° with respect
to the laser beam. A positive lens (AC254-075-A-ML f = 75.0 mm lens, Thorlabs) focusses the scattered light onto a photodetector
(PDA36A-EC Si amplified detector, Thorlabs) which is read out by the
same LabVIEW program. MATLAB analysis software has been developed
to further analyze the scattering signals.
depicted in Figure S2 of the
particle solution is located. Around the cuvette four electromagnets
are positioned in a cross arrangement. With this quadrupole setup,
in-plane rotating magnetic fields are created by flowing a sinusoidal
current through each of the four coils with a phase lag of 90°
between neighboring coils, using a homemade LabVIEW program. A 660
nm laser (Single Mode Hitachi HL6545MG laser, Thorlabs) is focused
into a square glass cuvette containing the particle solution by a
positive lens (AC254-150-A-ML f = 150.0 mm lens,
Thorlabs). The light scattered by the rotating particles (monomers,
dimers, trimers, etc.) is collected at an angle of 90° with respect
to the laser beam. A positive lens (AC254-075-A-ML f = 75.0 mm lens, Thorlabs) focusses the scattered light onto a photodetector
(PDA36A-EC Si amplified detector, Thorlabs) which is read out by the
same LabVIEW program. MATLAB analysis software has been developed
to further analyze the scattering signals.
3
Spatially Modulated Laser Illumination for Multimode Fiber Characterization
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