Hydrogen Fluoride Detection (HF)

Importance of laser-based hydrogen fluoride detection

nanoplus lasers for hydrogen fluoride detection are used for:

  • Process Optimization: Gas cooling
  • Process Optimization: Aluminium production
  • Safety: Emission control
  • Health: Surgical smoke

Tunable diode laser spectroscopy allows measuring HF with up to ppb precision in real time and in situ. Providing long-term stability and requiring little maintenance, nanoplus lasers are suitable for operation in harsh environments.

Standard wavelengths for hydrogen fluoride detection

nanoplus offers various wavelengths to target the vibrational-rotational bands of hydrogen fluoride. Different customers use different wavelengths. Literature recommends the following wavelengths for hydrogen fluoride detection:

Select your wavelength for hydrogen fluoride detection

Above wavelengths are commonly used to detect hydrogen fluoride. When you choose your wavelength, you have to consider product set up, environment and nature of the measurement. These factors decide if the selected wavelength is a good match. Let us know the wavelength you require with an accuracy of 0.1 nm!

Do have a look at the HITRAN database to evaluate further wavelengths.

Figure 1: Absorption features of hydrogen fluoride in 760 nm to 6000 nm range
Absorption features of hydrogen fluoride in 760 nm to 6000 nm range

Related information for laser-based hydrogen fluoride detection

Specifications & Mountings


Papers & Links

The following tables analyse the typical specifications of the standard wavelengths for HF detection.

electro-optical properties of
1273.0 nm DFB laser diode
standard wavelengthλnm1273.0
absorption line strengthScm / mol∼ 7 x 10-20
output powerpoutmW20
threshold currentlthmA121525
current tuning coefficientcTnm / mA0.0070.010.02
temperature tuning coefficientcInm / K0.070.090.1
mode hop free tuning rangeΔλnm+/- 0.5
electro-optical properties of
2475.0 nm DFB laser diode
standard wavelengthλnm2475.0
absorption line strengthScm / mol∼ 3 x 10-18
output powerpoutmW3
threshold currentlthmA253050
current tuning coefficientcTnm / mA0.010.020.05
temperature tuning coefficientcInm / K0.180.220.25
mode hop free tuning rangeΔλnm+/- 0.5
mounting options /
technical drawings
wavelengthTECcap with windowAR cap with AR windowfiberheatsinkcollimation
TO5.6 760 nm - 3000 nmNANANANANA
TO5 760 nm - 3000 nmNANA
TO663000 nm - 6000 nmNANA
c-mount 760 nm - 3000 nmNANANANANANA
SM-BTF760 nm - 2360 nmNANAsingle modeNANA
PM-BTF1064 nm - 2050 nmNANApolarization maintainingNANA

Ask for further packages.

Please find below a number of application samples.

Control of toxic substances:
HF is a compound of combustion processes. Due to its risks for human health, emissions are monitored continuously. [3]

Please find below a selection of related papers from our literature list.

Let us know if you published a paper with our lasers. We will be happy to include it in our literature list.

#3 Gas monitoring in the process industry using diode laser spectroscopy;
I. Linnerud, P.Kaspersen, T. Jaeger, Appl. Phys. B 67, 1998, pp. 297-305.

#9 DFB Lasers Between 760 nm and 16 µm for Sensing Applications;
W. Zeller, L. Naehle, P. Fuchs, F. Gerschuetz, L. Hildebrandt, J. Koeth, Sensors 2010, 10, pp. 2492-2510.

#43 Chemical analysis of surgical smoke by infrared laser spectroscopy;
Michele Gianella, Markus W. Sigrist, Appl. Phys. B, 109, 3, Nov. 2012, pp. 485-496.