Reflectometer Holmarc

Thin film spectroscopic reflectometer is a fundamental instrument used for the analysis of thin film thickness in industry and research. Holmarcs tfsr model is able to analyze thin films thickness, complex refractive index and surface roughness with high speed and repeatability. Tfsr theory works with complex matrix form of fresnel equations for reflectance and transmittance. Absolute reflectance spectroscopy is the principle behind reflectometer; which is the ratio of the intensity of the reflected light beam (usually monochromatic) to the intensity of the incident beam.

Light beam normally incident on the sample surface in turn reflect from top and bottom of the thin film surfaces which get interfered and is directed through optical fiber to ccd attached spectrometer via computer. On the monitor we get spectrogram with interference oscillations directly proportional to the thin film thickness.

Holmarcs reflectometer can be used to analyze single, multi-layer, free standing and rough layer thickness of various stacks such as di-electric, crystalline, amorphous, metallic and absorbing samples. It also finds absolute transmittance and absorption directly. Roughness treatment is done with ema modeling. The instrument can also be used to find optical conductivity, molar refractivity and brewsters angle of sample under study.

Advanced Reflectance Measurement

The Holmarc Reflectometer features a halogen lamp with a collimated beam for precise and reproducible reflectance measurements from 400 nm to 700 nm. The photodiode array detector ensures high accuracy and rapid response, making the system suitable for analysis of a wide range of coated and uncoated surfaces in laboratory environments.


User-Friendly Operation and Versatility

With adjustable test speeds, sample holders catering to specimens from 15 mm up to 100 mm in diameter, and the capacity to measure a single specimen weighing up to 2 kg, the instrument provides remarkable flexibility. Software compatibility with Windows systems and multiple interface options (USB, RS232) streamline data acquisition and documentation.


Enhanced Safety and Reliable Performance

Protective measures like fuse and overvoltage safeguards ensure safe operation, while standard mirror calibration maintains consistent accuracy (1%). The anti-slip specimen holder enhances measurement stability. Data can be exported in both graphical and tabular formats, enhancing analytical efficiency during laboratory and industrial use.