Biophotonics

Iridian fabricates standard and custom engineered optical interference filters that meet the durability and accuracy requirements of biomedical devices.

These include:

• Fluorescence filter sets for spectroscopy or microscopy use featuring high transmission for brighter imaging and shorter exposure time, as well as very sharp cutoff and excellent isolation for improved image quality
• Laser line and multi-peak filters offering steep edges, high transmission and wide blocking range

Iridian's filters use hard dielectric coatings that do not require cover glass for durability. This greatly improves the filters' transmission levels, reliability and ease of handling for in comparison to traditional filters.

Standard & Custom Biomedical Filters

	Band Pass Filters Bandpass filters (BPF) are used to transmit one or more bands of wavelengths while blocking (or reflecting) adjacent wavelengths over extended ranges.
	Dichroic Filters In fluorescence analyses, it is essential that the light source be segregated from the emitted spectrum from the fluorophore so as not to interfere with the analyses.
	Edge Pass Filters - Spectroscopy Optical edge pass filters (EPF) are needed to isolate transmitted wavelengths from blocked wavelengths often in a sharp transition.
	Emission Filters Fluorescence Emission Filters Fluorescence analysis of bio-medical samples requires optical filters that can detect the emission of photons after a molecule has been excited.
	Excitation Filters Fluorescence analysis of bio-medical samples involves the use of light at a particular wavelength to excite a molecule to a higher level of vibrational energy.
	Fluorescence Spectroscopy Filter Line The light source used in fluorescence spectroscopy, the fluorophore and the detector all serve to determine spectrally which filter set to use.
	Laser Line Filters Iridian’s Laser Line (LL) Filters feature high transmittance in the passband and a steep roll-off.
	Multiple Band Pass Filters Iridian offers a full range of multiple band pass filters in the visible and near IR wavelength ranging from 400nm-2500nm.
	Multiple Notch Filters Iridian's Multi-Notch Filters incorporate the same benefits as our single notch filter with as many as 4 laser lines blocked in one filter.
	Notch Filters Applications such as Raman spectroscopy often require that certain frequencies within a narrow range be attenuated.