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microspectrometer for Photoluminescence
MicOS Optical Spectrometer Video

Photoluminescence Microspectrometer

The most versatile and cost effective microspectrometer for steady state and lifetime photoluminescence

MicOS, the latest in microscope spectrometers is a fully integrated, versatile and cost effective microscope spectrometer that combines a microscope head with a high-performance, triple grating, imaging spectrometer that can accommodate up to 3 different detectors.

  • Wide spectral coverage
  • Image camera for viewing sample
  • Down- or side-looking configurations
  • Multi-wavelength excitation
  • Flexible, customizable design
  • Affordable


MicOS Optical Spectrometer Video (2:38)

Introduction to MicOS Video (4:08)

Photovoltaics and Photoluminescence Video (4:58)

Steady State and Time Resolved Photoluminescence Webinar (35:13)

Segment: Scientific
Manufacturing Company: HORIBA Scientific

Bring the microscope to your spectrometer!

Using a standard microscope for luminescence characterization often means inefficient fiber-optic coupling to a spectrometer, and difficult access for many sample configurations, such as side-emitting devices, or upright cryostats. Nor do standard microscopes offer flexibility for coupling multiple lasers for photoluminescence excitation.

HORIBA Scientific’s MicOS merges microscopy and spectroscopy, to provide optimal coupling from the sample all the way to the detector. Available down- or side-looking configurations for side-emitting devices or upright cryostats give you flexible sample access. An optional, fully automated stage for mapping and sample-positioning is available. The MicOS offers a flexible platform for the use of multiple lasers for sample excitation. The system includes a vision camera so you always see what you are measuring.


The MicOS can be used with any combination of laser wavelengths, both single wavelength excitation and multiple wavelength excitations.  The laser sources may either be fiber coupled to the MicOS input or assembled in a laser train to free space couple the light into the MicOS.  Fiber coupling provides ultimate flexibility, and free space coupling provides the best possible spatial resolution with high magnification objectives.


MicOS Microscope Head

The MicOS microscope head includes all of the coupling optics for directing the laser to the sample and collecting the signal and coupling it to the spectrometer and detector.  It also includes a white light source for illumination of the sample and a vision camera for viewing the sample.  The optical schematic below shows the layout of the MicOS head.


A range of spectrometers are available for integrating into your own Raman experiment, with focal lengths and resolutions to suit all requirements – ranging from 140 mm to 550 mm and above.  Whether the application is for routine screening, fluorescence and PL mapping, or detailed high resolution Raman research, the spectrometer to match is available.

  • High precision spectrometers with low stray light levels  and options for high spectral resolution
  • Gratings and sampling optics optimized for Raman
  • Upgradeable spectrometer platform ready to expand to fluorescence, PL, and optical spectroscopy

Click here to view all of the available spectrometers.


A range of detectors are available for integrating into your own Raman experiment, with different chip architectures and various degrees of cooling to suit all requirements. Whether the application is for rapid measurements or very weak Raman scattering samples, there is a detector to match.

  • High sensitivity CCD detectors for UV-VIS
  • Linear InGaAs arrays for near-IR response
  • Deep cooling for low dark current (thermoelectric or LN2 cooling)

Click here to view all of the available detectors.


LabSpec 6 Spectroscopy Software

The LabSpec6 spectral software suite used on all the HORIBA Jobin Yvon analytical and research Raman spectrometer systems is now also available for modular Raman systems. It has been designed and written as a dedicated Raman spectroscopy package and offers many powerful capabilities not found in a basic spectroscopy software.



Depending on the MicOS configuration (down- or side- looking), various models of cryostats may be employed.  An example is given below, however the MicOS system is customizable to a wide variety of cryostat types and manufacturers.

Sample Stages

The manual XYZ stage is ideal for low budget applications where mapping is not critical, but precise positioning of the sample under test is crucial.

A variety of sample stages are available, both manual and motorized.  Schematics are shown below for various options.

The manual XYZ stage is ideal for low budget applications where mapping is not critical, but precise positioning of the sample under test is crucial.

The manual XY, motorized Z stage is ideal for applications where real time mapping is not required, but fine control over the focus (Z) is desired.

The motorized XYZ stage is required for any applications where real time mapping of the sample under test is desired.  The controller integrates seamlessly with LabSpec software, providing a complete, turn-key system.

Optical Breadboard

For users who do not have access to an optical table, a 2’ x  4’ breadboard is available so that the MicOS can be set up on any standard table.

Wafer Holder

The microscope stage can be equipped with a wafer holder for mapping of large areas.  A rotating 4” wafer holder is standard, however larger wafer sizes can be accommodated.  Contact the factory for details.



Microscope Optical Spectrometer

Spectral Range1

>200 nm – 1600 nm

Spectral Resolution2


0.18 nm


0.10 nm



CCD 1024 x 256 OE3

IGA 512 x 50

Single Channel


200 – 1050 nm

800 – 1600 nm

190 – 1600 nm4

Excitation Laser Wavelength5

325 nm, 355 nm, 405 nm, 532 nm, 633 nm, 785 nm

Microscope Objectives





Spot Size

100 µm

<20 µm

<10 µm

Sample Stage

XYZ (manual or motorized)

1Depends on choice of objective, filters and detectors.
2 For 1200g/mm grating and 26 µm pixel/element size.
3 Back illuminated chip formats available for specific quantum efficiency requirements. 
4 Needs two detectors to cover entire range
5 Other options available upon request


III-V Wafer Characterization through Photoluminescence Mapping
III-V Wafer Characterization through Photoluminescence Mapping
III-V semiconductors are important to the fabrication of active photonic devices such as light sources and detectors. Successful fabrication of such devices relies on the high quality of the underlying materials and precise deposition of intended geometries on a wafer substrate.
Room-temperature Micro-electroluminescent Characterization of Ge-based IR Sources
Room-temperature Micro-electroluminescent Characterization of Ge-based IR Sources
Monolithic integration of optical components on CMOS platforms is ongoing in the optical communications industry. CMOS offers a mature and robust platform, and therefore is logical for building optical-interconnect modules.
Photoluminescence Characterization of GaN Alloys and Other Semiconductor Microstructures
Photoluminescence Characterization of GaN Alloys and Other Semiconductor Microstructures
GaN and related alloys are important materials used to build short-wavelength light sources (lasers and LEDs). Room- and low-temperature photoluminescence (PL) are used to characterize these materials as well as device performance.

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