Remote Sensing and Environmental Monitoring

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Raman Filters (75)
- Band Pass Filters (9)
  - Laser Line (9)
- Edge Pass Filters (46)
  - Long Edge (10)
  - Long Edge Ultra-Steep (15)
  - Nano Edge (4)
  - Short Edge Ultra-Steep (5)
  - Wide Angle Long Edge (12)
- Dichroic Filters (8)
  - Long Pass Laser (3)
  - Raman Wide Angle Dichroic Filters (5)
- Notch Filters (12)
  - Narrow Notch (12)
Fluorescence Filter Sets (9)
Spectroscopic Filters (133)
- Bandpass Filters (43)
  - Emission Cytometry (16)
  - Emission Fluorescence (9)
  - Excitation Fluorescence (9)
  - Laser Line (9)
- Dichroic Filters (30)
  - Raman Wide Angle Dichroic Filters (5)
  - Long Pass Filters Cytometry (7)
  - Long Pass Fluorescence (9)
  - Long Pass Laser (2)
  - Short Pass Cytometry (7)
- Edge Filters (45)
  - Iridian Wide Angle Long Pass Edge Filters (12)
  - Long Edge (10)
  - Long Edge Ultra-Steep (15)
  - Nano Edge (3)
  - Short Edge Ultra-Steep (5)
- Multi Bandpass (3)
- Notch (12)
  - Narrow Notch (12)
Telecom Filters (57)
- Custom (1)
- CWDM Filters (18)
  - CWDM 2Skip0 (2x0) (4)
  - CWDM Dual Band (8)
  - Multi-Channel (4)
  - Triple Band (2)
- DWDM Filters (15)
- Etalon (7)
- FTTx (2)
- Gain Flattening (4)
- Linear Transmittance (6)
- Tap (3)
LaseReflect® (1)
IR Sensing and Detection Filters (7)

Iridian supplies a number of the leading OEMs with the filter technology required for their environmental monitoring instrumentation and also serves the research, prototype and replacement market.

Many chemical and molecular species have an unique set of spectral emission or absorption lines that can be used to identify them when illuminated by a light source. These spectral lines cover the visible (VIS), near-IR (NIR), mid-wave IR (MWIR) and long-wave IR (LWIR) wavelength regions. Analytical instruments such as PAS Gas detection systems are designed to detect these emission or absorption lines for applications as diverse as remote earth sensing, gas detection and chemical processing.

lridian’s MLWIR BPF capabilities provide narrow, high transmission band-pass filters in the 2-10 um wavelength region enabling optical systems to detect the presence and concentration of gases of interest in environmental or process analysis applications. Iridian will offer band-pass filters in the 10-15 um range in 2021

Iridian can supply spectral emission line filters from the UV (340 nm) up to the mid-IR (10 um). UV-visible spectral line emission filters have bandwidths varying from 1-20 nm, depending on the application requirements, while mid-IR emission and absorption line filters have bandwidths of up to several hundred nm.

Filters for remote sensing and environmental monitoring:

Laser Line Filters

IR Filters + many others

LiDAR