with APE's MID-IR Laser Carmina

Combine s-SNOM and AFM-IR with a Remarkable Mid-IR Laser

Broadly Tunable IR Laser for the Integration with Scattering SNOM and AFM-IR Microscopes

APE provides a tunable MId-IR laser spectroscopy, and for the integration with scattering SNOM and AFM-IR microscopes.

The laser sets new standards in resolution and tuning range due to its OPO/DFG architecture. The unique combination of 300 cm-1 broadband as well as 20 cm-1 narrowband emission covers the two complementary nanoscale IR techniques s-SNOM and AFM-IR.

The outstanding high output power between 5 mW and 300 mW in combination with an extremely low noise level is addressing a wider range of applications in the near-field imaging & spectroscopy field.

A pulsed mode (Burst Mode with 50 % Duty Cycle) is included for AFM-IR applications.

At a Glance

  • Imaging & Spectroscopy of organic & inorganic samples with a remarkable IR light source
  • Two complementary nanoscale Mid-IR techniques: s-SNOM and AFM-IR
  • High performance narrowband (~ 20 cm-1) and broadband (useable 300 cm-1) emission
  • Highest signal-to-noise performance due to OPO/DFG architecture
  • User friendly turnkey operation incl. automated wavelength tuning
  • Wavelength tuning broadband: from 2.15 µm – 15 µm (670 cm-1 … 4650 cm-1)
  • Wavelength tuning narrowband: from 5.0 µm – 15 µm (670 cm-1 … 2000 cm-1)
  • Outstanding output power levels between 5 mW and 300 mW
  • Fast continuous sweep mode in under 30 seconds for scanning from 1000 – 1800 cm-1 in the narrowband mode

Operation Modes

4 different operation modes are availabe to cover s-SNOM spectroscopy, s-SNOM imaging, and AFM-IR:

1 – Broadband quasi-cw mode
2 – Narrowband quasi-cw mode
3 – Broadband pulsed mode
4 – Narrowband pulsed mode

Beam Profil

Beamprofil Carmina IR Laser

The beam profile of Carmina gives an ellipticity of >80%, measured here in the wavenumber range between 2000 … 670 cm-1.

Specifications & Typical Performance

Available Configurations   
Version AVersion BVersion C
Broadband quasi-cwxxx
Narrowband quasi-cwxx
Broadband Pulsed Modex
Narrowband Pulsed Modex
Additional 1032 nm Output PortAvailable for all Configurations
Broadband Operation 
Tuning Range2.15 μm ... 15 μm (4650 cm-1 ... 670 cm-1)
+ 1.46 μm ... 2 μm (6850 cm-1 ... 5000 cm-1)
Wavelength TuningFully automated, no user adjustment required
Step- and Settle TimeTyp. 2 s
Power> 15 mW at 1600 cm-1
Bandwidth Typical> 300 cm-1 (FWTM, 10 dB level), 170 cm-1 (FWHM)
Beam Quality M2
< 1.3 at 1600 cm-1, typ. < 1.3 over complete tuning range
PolarizationHorizontal < 4850 cm-1, Vertical > 4850 cm-1
Beam Diameter at ExitTyp. 5 mm at 1600 cm-1
Narrowband Operation 
Tuning Range5 μm ... 15 μm (2000 cm-1 ... 670 cm-1)
Wavelength TuningFully automated, no user adjustment required
Step and Settle TimeTyp. 2 s
Sweep ModeContinuous sweep
Max. speed > 30 cm-1/s, speed and range software adjustable
Power> 15 mW at 1600 cm-1
Bandwidth Typ. 20 cm-1 (FWHM) for 1000 cm-1 ... 1800 cm-1
Beam Quality M2< 1.3 at 1600 cm-1, typ. < 1.3 over whole tuning range
Beam Diameter at ExitTyp. 5 mm at 1600 cm-1
cw and pulsed mode  
Quasi-cw ModeRepetition Rate40.5 MHz ± 0.5 MHz
Pulsed Mode Frequency Modulation50 kHz ... > 1.5 MHz externally triggered via TTL signal (BNC)
Duty Cycle50%
Energy per Cycle> 15 nJ at 1600 cm-1 at 500 kHz

Download our brochure (download tab) to view the specification data.

Typical Data

Carmina Broadband operation - typical power performance
Carmina Broadband operation - typical spectral bandwidth


Carmina Narrowband operation - typical power performance
Carmina Narrowband operation - typical spectra

Datasheets & Brochures

APE Carmina Rev.3.2.2 (pdf /english)

Application Note


Please send an email to if you are looking for a manual in pdf format. You help us if you send us the serial number of the device in question.

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Email & Phone Contacts

APE Angewandte Physik & Elektronik GmbH
Plauener Strasse 163-165 | Haus N
13053 Berlin, Germany

tel +49 30 98601130
fax +49 30 986011333


Full compatibility with Bruker Anasys

Carmina is fully compatible with sSNOM & AFM-IR solution from Anasys / Bruker, the world leader in nanoscale IR spectroscopy. Contact us for more information.