Shortpass Dichroic Mirror Shortpass Dichroic Filter

 

Our high-performance shortpass dichroic mirrors are precision-engineered with proprietary dielectric coatings to separate light based on wavelength optimally. Customizable cutoff wavelengths from 400 nm to 2 μm and ultra-sharp transitions between high reflectivity and transmission allow exceptional spectral filtering and beam splitting. Operate at 45 degree incidence to reflect over 99 percent of shorter wavelengths while transmitting over 90 percent of longer wavelengths. It is ideal for demanding optics applications requiring precise wavelength selection like fluorescence imaging, laser line separation, and optical filtering. They are rigorously tested and built to handle high power levels with minimal beam shift for long lifetimes. For unmatched dichroic performance, trust our shortpass dichroic mirrors. Contact our photonics experts today.

 

- Proprietary ultra-smooth dielectric coatings for superior dichroic performance

- Customizable cutoff wavelengths from 400 nm to 2 μm

- Ultra-sharp transition between reflection and transmission bands

- Reflects over 99 percent of shorter wavelengths

- Transmits over 90 percent of longer wavelengths

- Operates at 45 degree angle of incidence

- Enables exceptional spectral filtering and beam splitting

- Ideal for fluorescence imaging, laser line separation, optical filtering

- Handles high laser power levels with minimal beam shift

- Induces low wavefront distortion to maintain system alignment

- Rigorously tested for long-lifetime reliability

- Custom sizes and mounting options available

 

	400nm - 2μm
	>99 percent
	>90 percent
	<10nm
	45 degree
	Λ/10 PV
	10J/cm2
	-20 degree to 80 degree
	0-90 percent non-condensing
	12.5mm - 175mm diameter

 

- Fluorescence Microscopy

- Laser Beamsplitting

- Wavelength Division Multiplexing

- Laser Pumping

- Spectroscopy

- Optical Filtering

They can filter out shorter undesirable wavelengths like UV or IR radiation while transmitting select visible or near-IR bands.

 

The dichroic mirror serves a critical function in fluorescence microscopy - it acts as a wavelength-selective filter to direct excitation light to the sample while transmitting emitted fluorescence to the detector.

 

 

 

The dichroic mirror's sharp cutoff between reflection and transmission allows it to very efficiently reflect shorter wavelength excitation light (usually >90% reflection below the cutoff wavelength) while maximally transmitting the longer wavelength emission light (usually >90 percent transmission above the cutoff wavelength).

 

This spectral selectivity and efficiency are vital for high-contrast fluorescence imaging. The dichroic mirror thereby acts as the key optical element that separates excitation and emission light to form a fluorescence image free of excitation light that would typically overwhelm the much weaker fluorescent signal.

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