NanoScan 2s

NanoScan 2s Si/9/25

Low Power Scanning Slit Profiler: Silicon Detector, 9mm Aperture, 25µm Slits

This NanoScan scanning-slit profiling system accurately captures and analyzes wavelengths from 190nm - 950nm with its Silicon detector. It features a slit size suitable for low-power beams, near real-time data capture rates, an optional power measurement feature, and operates in CW or kHz Pulsed modes which makes it ideal for comprehensive analysis of UV, Visible, and NIR lasers.

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NanoScan 2s
NanoScan 2s


  • 190-950nm
  • 100μm - ~6mm
  • CW, Pulsed >25kHz
  • Silicon
  • USB 2.0
  • ~10nW - ~10W
  • 25µm
  • 9mm
  • 83mm
Need help finding the right beam profiler? Try our Beam Profiler Wizard

Software Editions

The Silicon NanoScans are available with the following versions of software. CLICK HERE for more information on the different versions of NanoScan software.

  • NS2s-Si/9/25-STD


    NanoScan2s Si Detector 9mm aperture 25µm slits. High-resolution head featuring Si detector, 63.5mm diameter head with rotation mount, 9mm entrance aperture, and matched pair of 25 µm wide slits. Use from 190nm to wavelengths <1µm. Not for 1.06µm wavelength

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  • NS2s-Si/9/25-PRO


    NanoScan2s Si Detector 9mm aperture 25µm slits. High-resolution head featuring Si detector, 63.5mm diameter head with rotation mount, 9mm entrance aperture, and matched pair of 25 µm wide slits. Use from 190nm to wavelengths <1µm. Not for 1.06µm wavelength
    Software includes ActiveX automation featur

    Request a Quote
  • NSv2 STD to NSv2 PRO Software Upgrade


    Upgrade NanoScan v2 Standard version software to the PRO version. This upgrade opens the NanoScan automation feature for those users wanting to integrate or develop their own interface using Visual Basic for Applications to embed into such applications as LabView. Return scanhead to factory.

    Request a Quote


  • Download NanoScan Standard
    NanoScan Standard is our full-function software with a extensive set of NIST traceable ISO beam width and roundness, beam position, and M2 measurements and a customizable under interface with the ease-of-use and flexibility that customers have come to expect.
  • Download NanoScan Professional
    NanoScan Professional has all of the functionality that NanoScan Standard includes. NanoScan Professional supports all of our scanning slit profilers, but includes an automation interface written in ActiveX to push data to your custom applications.



Where is the detector in the NanoScan?

The detector is mounted behind the slits. This position is not important to the measurements. The measurement plane is the scan plane of the slits, which is nominally 1.1mm from the face of the front cap. Refer to the mechanical drawings specific information on the measurement plane location and the reference plane of the scan head.


Why is the silicon NanoScan not recommended for 1064nm beam measurements?

The silicon detector is very transparent to NIR light >1000nm. If it is used for measuring these beams, you will often see a tailing profile, because the signal does not decay fast enough. This will lead to erroneous results. We recommend using the germanium, or if there is enough power, the pyro electric detector for these wavelengths.


After setting up the NanoScan profiler and acquiring the beam, the profile is bouncing back and forth.

This is usually caused by the Automatic ROI selection. After acquiring the beam OK, you can then uncheck the Auto ROI in the ROIs menu and the beam should stabilize OK.


Won't the NanoScan slit diffract the beam?

Yes, but since the NanoScan measures all the light on the detector as a function of slit position, this does not affect the measurement results.


Can I get closer to the front of the NanoScan V2 since it has a new C-Mount adapter ring?

The NanoScan V2 product is great for looking at focused spots, but sometimes the C-Mount ring that is on the front can get in the way mechanically. By removing the three retaining screws it will allow you to remove this ring so you can get mechanically closer to the front of the NanoScan V2. Care should be used when removing these screws and the ring so something does not fall down inside the input aperture of the NanoScan V2. It is recommended that if you are going to remove the C-Mount ring that you invert the NanoScan V2 so it is looking at the floor and then remove the screws and the C-Mount ring to allow gravity to work in your favor and pull them away from the input aperture.


My NanoScan system is giving me an error that says” The selected speed could not be set within 0.01%!” What does this mean?

This means that the motor is not able to set the rotation speed to within 0.01% precision. This typically means that the motor is wearing out, or that something is causing the motor to not be able to rotate at a constant speed. This typically requires that the system come back to the factory for inspection and repair.

This could also mean that you are running the wrong software. If the NanoScan does not have a Mini USB connection on the head, it should not be run on NanoScan 2.4.X software. It should be run on version 2.1 SR1 software.


Can multiple NanoScans be run from the same PC, or can you connect multiple NanoScans and select the one you want to run?

Actually, only one NanoScan can be run from the NanoScan software at a time. If you did connect multiple NanoScans, only one will be recognized and able to run, and the other(s) will not be selectable.



Using the NanoScan Slit Profiler Using the NanoScan Slit Profiler
Why Measure Your Laser Beam? Why Measure Your Laser Beam? Why Measure Your Laser Beam?

This tutorial is presented by Ophir-Spiricon sales engineers - the experts in the field of measuring lasers and in helping you get the most out of your laser beam.

Fundamentals of Laser Measurement & Beam Profiling Fundamentals of Laser Measurement & Beam Profiling Fundamentals of Laser Measurement & Beam Profiling

Is your laser's beam profile shaped correctly for your application?
This video teaches the fundamentals of laser beam profiles and discusses the benefits of profiling your laser beam.
Several case studies are presented showing before and after laser beam profiles.

See for yourself how easy it is to use a NanoScan to measure your laser beam. This 3-minute video shows the NanoScan profiling both a HeNe and a high power laser.

Tutorials and Articles

Measuring Astigmatism the Easy Way

Simple NanoScan/BeamScan Measurements ofLaser Diode Beams Produces Astigmatism DataAstigmatism measurements of laser diodes, optical elements, and/or other sources can be made quickly and easily using a NanoScan/BeamScan. For example, by simply focusing the beam from a laser diode onto the profiler and measuring the distance between primary and secondary foci, an indication of source astigmatism is readily obtained. However, since this distance is on the order of 10 microns (μm), longitudinal magnification can be used to accommodate this measurement and reduce potential errors. This method Read more...

Making High Power Measurements with Little to No Attenuation

High power is a fairly indistinct term that means different things in different contexts. High power laser beams are handled by using reflective materials, and the level of reflectivity is dependent on the wavelength of the laser light.  Read more...

Upgrading NS v2 software from Standard to Professional

The NS v2 software is the same for both Standard and Professional, no need to download/install a different version. To perform the upgrade you must purchase the license for the NS v2 Professional. With the included license key you can click on the blue scanhead image in the left corner and select About from the dropdown, where you can then upgrade the scanhead from the Upgrade License box (see below)... Read more...