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Phosphor Evaluation System

1. Introduction

The Resonance Phosphor Evaluation System uses a computer-controlled tunable   vacuum ultraviolet light source with design optimized for test of phosphor emission and luminescence. It delivers vacuum ultraviolet (VUV) excitation wavelengths to samples on a target holder and measures their spectral phosphorescence with a fiber optic coupled CCD spectrometer. This is an excellent system for quality control, fundamental research and development of VUV and UV excited emitting materials.

 

 

 

2. Features

·    120 to 400 Nm Tunable Light Source with 0.15 to 10 Nm Spectral Bandwidth

 

·    Reference VUV Solar Blind Pmt for Tunable Light Source for Absolute VUV/UV Flux onto Sample and Transmission of Sample

 

·    10 Sample Positions on Standard Wheel

 

·    Modular Design Allows Change of Emission Sources and Detection Optics

 

·    Compact Footprint less than 1 Sq. Meter

 

·    Turn-Key Oil Free Pumping System

 

·    Emission Spectrometer Uses High Sensitivity UV/Vis/Nir Pmt for a Wide

Spectral Range from 200 To 900 Nm.

 

·    VUV Solar Blind Pmt Transmission Detector

 

·    Order Sorter with 2 Long Pass Filters

 

·    Labview Based Software with USB Interface

 

 

 

 

 

3. Specifictions

Light Source Specifications

Specification

Minimum

Typical

Maximum

Units

Lamp

Deuterium

Stability:                            Long Term

-

1

-

% per hour

Short Term

-

0.1

-

% per sec

Spectral Output

120

-

400

NM

VUV Intensity

 

2 x 1015

5 x 1015

Photons/sec/sr

UV Intensity

 

3 x 1014

5 x 1014

Photons/sec/sr

Certification

NIST Traceable Calibration of Irradiance in Vacuum

Full Angle Output Cone

30

45

65

Degrees

Input Power

18

25

30

Watts

Input Voltage

70

115

260

VAC

Input Line Frequency

50

60

65

Hz

Mounting Flange

2 3/4 inch Conflat is standard

Pulse

Modulation to 1 kHz

 

Tunable Monochromator Specifications

Specification

Minimum

Typical

Maximum

Units

Slits Adjustable to

10

-

4000

µm

Focal Length

-

200

-

mm

Standard Grating

-

1200

-

g/mm

Grating Size

-

42 × 42

-

mm

Resolution

-

0.1

-

nm

Dispersion

-

3.45

-

nm/mm

Efficiency (@ 150nm)

-

> 50

-

%

Wavelength Repeatability

-

0。2

-

nm

Stray light

 

< 2 × 10-4

 

 

Vacuum

 

< 1 × 10-6

 

torr

 

 

 

 

 

 

Sample Analysis System Specifications

Specification

Minimum

Typical

Maximum

Units

No. of Samples

-

10

20

 

Visible Spectrometer Resolution

-

1

-

nm

Range

200

-

900

nm

F No.

-

3

-

 

Vacuum

-

< 1 × 10-6

-

torr

Pumping Speed (to 10-5 torr)

 

< 15

 

mins

 


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