Engineering the future of 3D Microfabrication and microsystems
Band-Pass Terahertz Filters
Results through Micro-Scale Ablation
Nielson Scientific’s Band-Pass Terahertz Filters are precision-engineered components designed to transmit a defined frequency range while efficiently rejecting out-of-band signals. By leveraging proprietary micro-fabrication techniques, our filters deliver high spectral selectivity, excellent transmission efficiency, and reliable performance across the terahertz and far-infrared spectrum. These filters are ideal for advanced research, imaging systems, spectroscopy, and next-generation communication platforms.
Performance
Nielson Scientific designs and manufactures passive band-pass filters for terahertz and far-infrared wavelengths using precisely engineered metallic microstructures. These structures are tuned to exhibit specific resistance, capacitance, and inductance, forming microscopic resonant circuits that selectively transmit a targeted frequency band while reflecting or attenuating out-of-band radiation. The result is high spectral selectivity and improved signal purity for demanding optical and THz applications. The plot to the left illustrates a typical band-pass response, showing strong transmission within the designed passband and effective rejection outside of it.
Key Performance Features
- Operating frequency range: 0.1 THz to 20 THz
- High transmission efficiency: typically 80%–90% within the passband
- Low Absorbance: typically <3% from 0.1 THz to 20 THz
- Cryogenic compatibility for low-temperature (<10K) systems
- Sharp spectral selectivity for superior out-of-band rejection
- Passive, low-loss design for stable and repeatable operation
- Mounting options: SM0.5, SM1, SM2, and 3" filter designs all standard, other options available upon request
Standardized Aperture Sizes
0.5 in / 12.52mm
0.5 in / 12.52mm
0.5 in / 12.52mm
1.0 in / 25.4mm
0.5 in / 12.52mm
0.5 in / 12.52mm