Compare Model Drawings, CAD & Specs Availability Price
818-MSCOPE
Photodiode Sensor, Microscope Slide, 350-1100 nm
$1,934
3 Weeks
 818-MSCOPE Photodiode Sensor, Microscope Slide, 350-1100 nm
3 Weeks
 $1,934

Specifications

  • Detector Type
    Microscope Slide Form Factor
  • Detector Input
    Free Space
  • Detector Material
    Silicon with diffuser
  • Spectral Range
    350 - 1100 nm
  • Sensor Size
    18 x 18 mm
  • Attenuator
    None
  • Maximum Measurable Power
    1 W @ 350-649 nm
    600 mW otherwise
  • Minimum Measurable Power
    3 μW
  • Maximum Power Density
    20 W/cm²
  • Calibration Module
    DB15 Connector Pigtail
  • Calibration Uncertainty
    1.65% (350-430 nm)
    1.1% (430-1000 nm)
    4.3% (1035-1065 nm)
  • Linearity
    ±1.0 %
  • Rise Time
    0.2 sec
  • Connector Type
    DB15
  • Cable Length
    1.5 m
  • RoHS
    Compliant

Features

Measure Power in a Microscope

The 818-MSCOPE is a Microscope Slide power sensor that measures the optical power at the sample plane in a microscopy setup. The silicon photodiode measures from 350 nm to 1100 nm at optical powers ranging from 3µW to 1W and is designed to be a microscopy power sensor that answers the needs of fluorescence excitation measurements. The sensor has a footprint of 76.0 mm x 25.2 mm matching that of a standard microscope slide. The sensing area is protected and cleanable sealed so that it can measure with in an immersion medium such as water or glycerol as well as in air.

Low Angular Dependence for high N.A. objectives

There is a particular challenge with these measurements due to the strongly converging light coming through high N.A. objectives. When attempting to use standard photodiode sensors the measurement will be inaccurate since the responsivities of photodiode sensors have angular dependence and a large percentage of light is incident at high angles. With use of optical epoxy between the diffuser layer and the photodiode, the angular response of 818-MSCOPE is relatively flat, making it insensitive to the high angles of incidence of the incoming light.

Suitable for air, water or oil immersion objectives

818-MSCOPE has a smooth cleanable active area of the sensor. In addition to working in air, it is easy to use water and oil immersion objectives by directly applying the water/oil to the sensor surface.

Alignment target on the sensor body

The 818-MSCOE works the best when focused light from the objective is centered on the active area of the sensor. This can be accomplished by first adjusting the system so that light is centered on the target on the backside of the sensor and then flip the sensor around for the measurement.

NIST-traceable Sensor Calibration

Our calibrated photodiode sensors include a full spectral response calibration utilizing NIST-traceable standards calibrated with high-precision equipment maintained in Newport’s optical detector calibration facility. Tight calibration facility and process control allows the tightest calibration uncertainty in industry. Each detector is shipped with the calibration data, which is electronically stored inside the detector's EEPROM. A certificate of calibration as well as the calibration data are shipped with each detector. To maintain accuracy and guarantee performance, Newport recommends annual photodiode detector calibration.

Compatible Power Meters

Newport offers a comprehensive range of optical power meters from low cost, hand-held meters to the most advanced dual-channel benchtop meter available in the market. Presented here is a list of meters compatible with the 918D Series sensors. For more detailed information about our power meters, please see our Optical Power Meter Guide.

2938-R_front_angle
1938-R/2938-R		 1919-R_angle
1919-R		 843-R_side
843-R/843-R-USB		 844-PE-USB
845-PE-RS		 844-PE-USB
844-PE-USB
User Interface Touchscreen Advanced Simple User Commands, PM Manager PMManager only
Measurement Modes Power,
Low Freq. Power,
Peak-to-Peak Power,
RMS Power,
Exposure,
Current/Voltage		 Power,
Low Freq. Power
Exposure		 Power Power,
Low Freq. Power		 Power,
Low Freq. Power
Analog Bandwidth Up to 200 kHz 15 Hz 15 Hz 15 Hz 15 Hz
Data Storage 2 GB internal,
External USB memory size,
Via PMManager

External USB Memory, Via PMManager

 843-R-USB: Via PMManager
843-R: None		 User Commands, PM Manager Via PMManager
Measurement Rate per Second

Normal: 15

Fast Mode: 10,000

 15 15 15 15
Trigger In/Out ✔
Analog Out ✔ ✔ ✔ ✔ ✔
Computer Interface USB
RS232		 USB
RS232		 843-R-USB: USB
843-R: None		 RS232 USB

Please refer to Newport Power Meter and Detector Legacy and Compatibility for a complete list of meters that are compatible with this model.

Resources

Literature

Technical Notes

Other