What is an optical bandpass filter?

An optical bandpass filter selectively allows a specific range of wavelengths of light to pass through while blocking all other wavelengths. Design Characteristics of Optical Bandpass Filters Optical bandpass filters are primarily defined by several key characteristics:

Transmission:

This refers to the percentage of light that passes through the filter within its specified passband. Blocking: Measured by Optical Density (OD), which quantifies the filter’s ability to block unwanted wavelengths.

Edge Steepness:

Indicates how quickly the filter transitions between high transmission and blocking. Note: While passband specifications typically describe theoretical filter performance, Notch Optics prioritizes manufacturable specifications that accurately reflect the filter’s actual performance upon receipt by the customer.

Understanding “Bandwidth”

Notch Optics employs a “manufacturable specification” approach to define the bandwidth of our optical bandpass filters. This approach ensures that the filter’s performance aligns closely with practical applications within optical systems.

How are optical bandpass filters used?

Optical bandpass filters find application across various fields, including Spatial Biology, PCR, Quantum Computing, and Wearable Medical Devices. These filters are crucial for isolating specific wavelengths of light emitted by molecular probes, enabling precise detection and analysis in diverse scientific and medical contexts.

Explore Our Bandpass Filter Product Families Notch Optics offers a range of optical bandpass filters tailored to different performance requirements:

For further information on our optical bandpass filters and their applications, please visit our product pages or contact us directly.