Portable Raman Spectrometer

Portable Raman spectrometers use laser-induced molecular scattering to identify chemical compounds at the point of measurement, delivering laboratory-grade spectral analysis in a handheld or briefcase-portable instrument package. Security agencies, forensic teams, pharmaceutical quality control inspectors, and industrial safety personnel use these instruments to identify unknown substances in seconds without sample preparation, laboratory transport, or destructive testing of the material under examination.

The instrument directs a continuous wave laser at the target sample, with wavelength options including 532nm green, 785nm near-infrared, and 1064nm near-infrared depending on sample type and fluorescence sensitivity requirements. Near-infrared excitation at 785nm balances detection sensitivity with reduced fluorescence background for most security and forensic sample matrices. The spectrometer collects Raman scatter returning from the sample through a notch or edge filter that rejects the intense Rayleigh scatter at the excitation wavelength before the weak Raman signal reaches the detector array. Additionally, detector arrays use back-thinned CCD or InGaAs sensors depending on excitation wavelength, with spectral coverage running between 200 and 3200 wavenumbers per centimeter and spectral resolution between 8 and 15 wavenumbers per centimeter on current portable models.

Sample contact measurement uses a direct probe tip pressed against powder, liquid, or solid surfaces. Standoff measurement attachments collect Raman scatter from distances between 5 and 100mm without contact, protecting operators from hazardous or contamination-sensitive samples. Furthermore, through-container measurement penetrates clear and translucent glass, plastic, and polyethylene packaging up to 5mm wall thickness, allowing compound identification of sealed containers without opening them during security screening and border inspection operations.

Onboard libraries cover explosives, narcotics, pharmaceutical compounds, chemical warfare agent simulants, toxic industrial chemicals, and common packaging materials. Identification results display compound name and match confidence within 15 to 30 seconds. Moreover, GPS-tagged data records with operator credentials export through USB or Bluetooth to case management software for chain-of-custody documentation across law enforcement and forensic applications.

Tactical Supply Pakistan supplies portable Raman spectrometers to border security agencies, anti-narcotics forces, explosive ordnance disposal teams, forensic laboratories, and pharmaceutical inspection authorities requiring dependable field chemical identification capability across security and compliance operations throughout Pakistan.