Compare Model Drawings, CAD & Specs Availability Price
7Z02953
RM9-PD Femtowatt Measurement
RM9-PD Radiometer, 300 fW-300 nW, Ø10 mm Aperture, 200-1100 nm
$2,339

Full support available for the RM9 sensor with the Centauri, Vega, Nova II, Juno, Juno+, Juno-RS, EA-1, StarLite and StarBright and with the StarLab application.

There is limited support for the RM9 sensor with the older LaserStar, Pulsar, Quasar and Nova.

To upgrade the meters below to the version that fully supports RM9:
StarBright meters (rev 1.18 and higher) press here
Nova II / Vega meters (rev 2.44 and higher) press here
StarLite meter (rev 1.26 and higher) press here
Juno interface (rev 1.31 and higher) press here
Juno+ press here
Juno-RS press here
EA-1 press here
Centauri press here

Specifications

  • Product Name
    RM9-PD
  • Aperture Size
    Ø10 mm
  • Absorber Type
    Photodiode element
  • Spectral Range
    200 to 1100 nm
  • Minimum Power
    300 fW
  • Maximum Average Power
    300 nW
  • Maximum Average Power Density
    5 W/cm²
  • Response Time
    3.6 s
  • Dimensions
    Ø62 x 22 mm
  • Includes Chopper
    No
  • Cooling
    Convection
  • CE Compliance
    Yes
  • UKCA Compliance
    Yes
  • China RoHS Compliance
    Yes

Features

Measuring Laser Power Below the Noise Floor with a Lock-In Amplifier

Measuring optical signals in the femtowatt (10-15) to nanowatt (10-9) range can be very challenging. This video explains how Lock-In Amplifiers can help make these measurements possible.

RM9-PD Radiometer System: Powers Down to Femtowatts!

The RM9-PD system measures powers all the way down to 300 fW. This video introduces you to the RM9-PD, and shows you how to use it.

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