M5601 Broadband Notch Filter
Eliminate unwanted green-yellow light while preserving UV and red spectral content.
- Notch centre: 526.8 nm
- Notch width (FWHM): 175.9 nm
- Notch depth: OD ≥ 2.8 (T < 0.154%)
- Passband transmittance: ≥ 85.1% T (outside notch region)
- Edge steepness: ~25 nm (90 → 10 % per edge)
- Passband recovery: Within 13 nm of notch edges
- AOI: 0° (normal incidence); custom angles available
- Construction: Ion-assisted hard-oxide; 5 – 450 mm shapes, 0.21 – 3.8 mm thick
- Custom options: Centre tuning, notch width adjustment, multi-notch designs, rapid prototypes
Learn more
M5601 Hybrid delivers Notch centre 526.8 nm, Notch width (FWHM) 175.9 nm, and Notch depth OD ≥ 2.8 (T < 0.154%).
The hard-oxide coating is built for repeated handling, heat, and cleaning.
Best suited for:
Fluorescence microscopy, Raman spectroscopy, environmental monitoring, solar cell characterization, and photometric instruments requiring green-yellow rejection.
Description
The M5601 delivers exceptional spectral isolation for applications requiring simultaneous detection across separated wavelength regions. With a precisely engineered notch spanning 453-589 nm, this filter blocks the mid-visible spectrum while maintaining 91.4 % transmission in the violet-blue passband and 93 % in the red-NIR region. Peak transmission reaches 95.6 %, making it ideal for fluorescence microscopy and dual-channel imaging where green suppression is essential.
Key Advantages
- Dual-Passband Architecture - Simultaneous transmission of 383-433 nm and 624-780 nm enables efficient multi-color detection without switching optics
- Superior Notch Depth - Only 0.15 % transmission at 506 nm provides exceptional rejection of unwanted mid-visible light and stray green laser lines
- Hard-Oxide Coating - Durable ion-assisted multilayer design withstands high-power laser exposure and extended operational lifespans in demanding environments
- Custom Format Flexibility - Available in round, square, and free-form geometries; substrate options include standard Borofloat, soda-lime, Schott D263 T, and Corning Eagle XG
- Steep Spectral Edges - Rapid transition zones minimize passband overlap and enable precise wavelength separation in compact optical systems
Typical Applications
- Fluorescence Microscopy - Separates Violet Fluorescent Protein (VFP) emission from red dyes in multicolor live-cell imaging
- Laser Blocking - Efficiently blocks 532 nm laser scatter while passing signal bands in confocal and multiphoton systems
- Multispectral Imaging - Enables simultaneous acquisition of separate spectral regions for advanced computational photography
- Flow Cytometry - Isolates fluorescence from violet and red excitation sources in high-throughput cell analysis
- Raman Spectroscopy - Suppresses Rayleigh scatter at 532 nm while transmitting anti-Stokes Raman signals across dual bands
Prototyping available within 2-3 weeks; full production runs scale to your specification requirements with premium coating durability.
FAQ
M5601 FAQ
What is M5601 and what is it used for?
M5601 is a 439/615 nm Notch Filter. The M5601 delivers exceptional spectral isolation for applications requiring simultaneous detection across separated wavelength regions. With a precisely engineered notch spanning 453-589 nm, this filter blocks the mid-visible spectrum while maintaining 91.4 % transmission in the violet-blue passband and 93 % in the red-NIR region. Common uses include Fluorescence Microscopy, Laser Blocking, Multispectral Imaging, and Flow Cytometry.
What are the key optical specs of M5601?
Key published specs for M5601 include Notch centre: 526.8 nm; Notch width (FWHM): 175.9 nm; Notch depth: OD ≥ 2.8 (T < 0.154%); Passband transmittance: ≥ 85.1% T (outside notch region); Edge steepness: ~25 nm (90 → 10 % per edge).
What applications is M5601 best suited for?
M5601 is commonly used for Fluorescence Microscopy, Laser Blocking, Multispectral Imaging, and Flow Cytometry. Fluorescence Microscopy - Separates Violet Fluorescent Protein (VFP) emission from red dyes in multicolor live-cell imaging.
Can M5601 be customized for size, substrate, or coating requirements?
KUPO lists the construction for M5601 as Ion-assisted hard-oxide; 5 – 450 mm shapes, 0.21 – 3.8 mm thick. Published custom options include Centre tuning, notch width adjustment, multi-notch designs, rapid prototypes. Custom Format Flexibility - Available in round, square, and free-form geometries; substrate options include standard Borofloat, soda-lime, Schott D263 T, and Corning Eagle XG.
What should I know about angle of incidence and durability for M5601?
The published angle of incidence for M5601 is 0° (normal incidence); custom angles available. The hard-oxide coating is built for repeated handling, heat, and cleaning.
