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Vernier Diffraction Apparatus

Order code: DAK
Purchase QTY: (Each)1+    
Scientrific's price  $1,456.00    
Note: Prices do NOT include GST or freight

The Vernier Diffraction Apparatus lets students create, view and measure diffraction and interference patterns. The included Red Diffraction Laser provides a clean monochromatic light source. Slits are made by depositing metal film on glass, creating extraordinarily clean slits with fully opaque blocking areas. These high-precision slits cast clean diffraction and interference patterns, ideal for quantitative matching of intensity vs. position predictions.

The Linear Position Sensor and High Sensitivity Light Sensor completes the Diffraction Apparatus. In order to provide excellent spatial resolution, a selectable entrance aperture restricts the width of the pattern viewed by the High Sensitivity Light Sensor. The light sensor has three ranges, allowing the study of fine details or gross features of patterns. To measure position, the light sensor is mounted on a novel Linear Position Sensor.

This position sensor uses a precision optical encoder to measure translation with better than 50 micron resolution. Since it is optically based, without gears or racks, it has zero backlash.

Data collection is performed by choosing a slit, directing the laser through the slit and choosing an entrance aperture for the light sensor. Both the light sensor and position sensor connect to your interface. The light sensor is moved by hand over a 150mm distance, tracing out the diffraction pattern.

The effect of wavelength on the pattern can be measured using the optional Green Diffraction Laser

Additional Hardware Required:
The Vernier Diffraction Apparatus requires one Combination 1.2m Track/Optics Bench to serve as an optics bench. The Combination 1.2 m Track/Optics Bench is included with Vernier Dynamics Carts and Track Systems, sold separately.

• Red Laser Wavelength: 636nm
• Light Sensor Full Scale Ranges: 1, 10 and 100΅W
• Linear Position Sensor range: 150mm
• Linear Position Sensor resolution: 40΅m

Available slits:
• Single Slits (4)
• Variable Slits (2)
     Wedge: 0.02 – 0.2mm wide
     Double Slit: 0.04mm wide, spacing 0.125 – 0.75mm
• Double Slits (4 pairs)
     0.04mm wide at 0.25mm apart
     0.04mm wide at 0.5mm apart
     0.08mm wide at 0.25mm apart
     0.08mm wide at 0.5mm apart
• Variable Double Slit
     Same as variable slits group above
• Multiple Slits
     0.04mm wide at 0.25mm apart
     4 sets, 2, 3, 4, 5 slits
• Comparisons: 4 pairs of single/double slits: 0.04mm single + 0.04/0.25mm double, doubles 0.04/0.25 +0.04/0.50, doubles 0.04/0.25+0.08/0.25, double 0.04/0.25 + triple, 0.04/0.25

• Diffraction Slit System
• Red Diffraction Laser
• Combination Linear Position and High Sensitivity Light Sensor
• Power Supply

Educational use only:
Vernier and Kidwind products are designed for educational use. They are not appropriate for industrial, medical or commercial applications. Details

  • Warranty: 5 years
    • Package size (HxWxD): 267 x 260 x 406mm
    • Packed weight: 2.9kg

      Last edited 19th May 2022

      This product is used in teaching these Australian Curriculum codes:
      ACSPH076 - Linear Motion and Waves - Waves - A wave model explains a wide range of light­related phenomena including reflection, refraction, total internal reflection, dispersion, diffraction and interference; a transverse wave model is required to explain polarisation

      Click a curriculum code to see other products that relate.


      Essential items - The following items are required:
      TRACK - Vernier Combination 1.2m Track/Optics Bench$323.00
      TRACK-LONG - Vernier Combination 2.2m Track/Optics Bench$554.00
      Accessories / Spare Parts:From
      LQ-PS-INTL - Vernier LabQuest International Power Supply $39.00
      GDL-DAK - Vernier Green Diffraction Laser $556.00
      DSS-DAK - Vernier Diffraction Slit System Replacement $334.00
      LPL-DAK - Vernier Combo Pos Light Sensor Replacement $890.00
      RDL-DAK - Vernier Red Diffraction Laser $267.00
      Works with:From
      OEK - Vernier Optics Expansion Kit$454.00
      CM-OEK - Vernier Colour Mixer Kit$412.00
      DTS - Vernier Dynamics Cart and Track System$723.00
      CART-F - Vernier Fan Cart$265.00
      BLK - Vernier Bumper and Launcher Kit$218.00
      PAD-VDS - Vernier Friction Accessory$78.00
      PF-CART - Vernier Cart Picket Fence$13.00
      DTS-EC - Vernier Dynamics Cart and Track System with Motion Encoder$1,080.00
      DTS-LONG - Vernier Dynamics Track System Long$955.00
      DTS-EC-LONG - Vernier Dynamics Track System Encoder Long$1,311.00
      VDS - Vernier Dynamics System$597.00
      PAK-OEK - Vernier Polariser Analyser Kit$189.00
      M-OEK - Vernier Mirror Set for Optics Expansion Kit$131.00
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      CatalogueVernier Catalogue K-12
      CatalogueVernier Catalogue Uni
      User ManualGetting Started - Connecting your sensor
      User ManualVernier Diffraction Apparatus

      Note: Prices do NOT include GST or freight