M79516 Broadband Notch Filter
Mid-range green-yellow blocking with sharp edges and excellent passband transmission.
- Notch centre: 539.9 nm
- Notch width (FWHM): 156.4 nm
- Notch depth: OD ≥ 3.0 (T < 0.105%)
- Passband transmittance: ≥ 89.8% T (outside notch region)
- Edge steepness: ~21.5 nm (90 → 10 % per edge)
- Passband recovery: Within 11 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
M79516 Hybrid delivers Notch centre 539.9 nm, Notch width (FWHM) 156.4 nm, and Notch depth OD ≥ 3.0 (T < 0.105%).
The hard-oxide coating is built for repeated handling, heat, and cleaning.
Best suited for:
Advanced fluorescence detection, photonic systems, scientific instruments, and applications demanding both high efficiency and spectral selectivity.
Description
The M79516 delivers versatile performance with a 156 nm notch spanning 475-598 nm and outstanding 95.3 % peak transmission. Operating at 0.1 % depth at 531 nm, this filter achieves 91.3 % blue transmission and 93.8 % red-NIR transmission. Its balanced design combines excellent rejection characteristics with minimal signal loss, making it an ideal general-purpose solution for diverse fluorescence, laser-based, and imaging applications.
Key Advantages
- Ultra-Low Notch Depth - 0.1 % transmission at 531 nm provides exceptional suppression of 532 nm laser scatter and green fluorescence
- High Red-NIR Transmission - 93.8 % across 625-780 nm maximizes signal collection in deep-red and near-infrared applications
- Balanced Notch Width - 156 nm blocking band optimizes rejection depth while preserving usable passband separation
- Ion-Assisted Hard-Oxide Coatings - Durable multilayer construction withstands thermal stress and extended operational demands
- Comprehensive Customization - Round, square, and free-form shapes on Borofloat, soda-lime, Schott D263 T, and Corning Eagle XG
Typical Applications
- Confocal Microscopy - Separates blue and red excitation/emission in high-resolution multi-laser scanning systems
- Flow Cytometry - Enables efficient 405/532/633 nm three-color detection with minimal cross-talk
- Raman Spectroscopy - Blocks 532 nm Rayleigh scatter while transmitting Raman signals across separated spectral bands
- Laser-Induced Fluorescence - Provides portable and field-compatible spectral separation for environmental monitoring
- Optical Sensor Integration - Enables compact wavelength discrimination in miniaturized instrumentation
Rapid prototyping in 2-3 weeks; production scaling accommodates research and OEM requirements.
FAQ
M79516 FAQ
What is M79516 and what is it used for?
M79516 is a 462/618 nm Notch Filter. The M79516 delivers versatile performance with a 156 nm notch spanning 475-598 nm and outstanding 95.3 % peak transmission. Operating at 0.1 % depth at 531 nm, this filter achieves 91.3 % blue transmission and 93.8 % red-NIR transmission. Common uses include Confocal Microscopy, Flow Cytometry, Raman Spectroscopy, and Laser-Induced Fluorescence.
What are the key optical specs of M79516?
Key published specs for M79516 include Notch centre: 539.9 nm; Notch width (FWHM): 156.4 nm; Notch depth: OD ≥ 3.0 (T < 0.105%); Passband transmittance: ≥ 89.8% T (outside notch region); Edge steepness: ~21.5 nm (90 → 10 % per edge).
What applications is M79516 best suited for?
M79516 is commonly used for Confocal Microscopy, Flow Cytometry, Raman Spectroscopy, and Laser-Induced Fluorescence. Confocal Microscopy - Separates blue and red excitation/emission in high-resolution multi-laser scanning systems.
Can M79516 be customized for size, substrate, or coating requirements?
KUPO lists the construction for M79516 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. Comprehensive Customization - Round, square, and free-form shapes on Borofloat, soda-lime, Schott D263 T, and Corning Eagle XG.
What should I know about angle of incidence and durability for M79516?
The published angle of incidence for M79516 is 0° (normal incidence); custom angles available. The hard-oxide coating is built for repeated handling, heat, and cleaning.
