Mid Infrared 2500 - 6000 nm Narrow Bandpass Filters

Mid infrared narrow bandpass filters are optical filters designed to transmit a specific range of infrared wavelengths while blocking out unwanted wavelengths. These filters are essential in various applications where precise control over the infrared light spectrum is required. More on the uses and applications of mid infrared narrow bandpass filters as well case study examples of filters we have manufactured can be found below.

We design and manufacture custom mid infrared narrow bandpass filters between 2500 nanometres to 6000 nanometres to any custom specification. We hold a wide range of stock substrates such as Silicon, Sapphire, Infrared Quartz, Calcium Fluoride and more. We also have onsite dicing, so we are able to design, manufacture and dice filters to their finished size with lead times as little as 2 weeks. Please contact us to discuss your specific requirements.

Case Studies

3250 nm Narrow Band Pass Filter

4600 nm Narrow Band Pass Filter

4260 nm Narrow Band Pass Filter

Applications

Gas Analysis:

Narrow bandpass filters are used in gas analysis applications to selectively pass specific wavelengths of light for detecting and analysing a whole range of specific gases based on their unique absorption spectra.

Medical Diagnostics:

Infrared spectroscopy techniques using narrow bandpass filters are employed in medical diagnostics for analysing biological samples, detecting diseases, and monitoring medical conditions based on molecular vibrations in the mid-infrared range.

Environmental Monitoring:

Narrow bandpass filters are utilized in environmental monitoring systems to analyse pollutants, greenhouse gases, and atmospheric compositions by measuring specific absorption lines in the mid-infrared spectrum.

Material Analysis, Identification and Authentication:

Narrow bandpass filters play a crucial role in material analysis, identification applications, such as identifying chemical compositions, detecting impurities, identifying counterfeit products, and authenticating legitimate products by analysing materials based on their infrared signatures.

Remote Sensing and Imaging:

Infrared imaging systems equipped with narrow bandpass filters in the mid-infrared range are used for remote sensing applications, including agriculture, geology, and surveillance, to capture specific details and features not visible in other spectral bands.

Industrial Process Control:

Narrow bandpass filters are employed in industrial process control systems for monitoring and optimizing manufacturing processes, detecting contaminants, and ensuring product quality based on infrared signatures of materials.

Security and Defence:

Infrared sensors and imaging devices using narrow bandpass filters are used in security and defence applications for detecting threats, surveillance, target identification, and night vision operations in the mid-infrared spectrum.