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InGaAs, InAs and InAsSb Detectors

Photovoltaic infrared detectors in which the semiconductor element is made of InGaAs, InAs, InAsSb or superlattice material.

These detectors are cadmium and mercury free. As a result, the detectors comply with the RoHS directive and can be used in the consumer market.

InGaAs IR detectors

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Name

Active element material

Cooling

Immersion

Active area diameter

?

mm

Peak wavelength

?

λpeak, μm

Cut-off wavelength (10%)

?

λcut-off, μm

Detectivity

?

D* (λ= 1.55 μm , f = 20 kHz), cm⋅Hz1/2/W

Current responsivity

?

Ri (λ= 1.55 μm), A/W

Dark current

?

Idark, nA

3dB bandwidth

?

MHz

Package

Window

Datasheet

Material

InGaAs

Cooling

no

Immersion

no

Active area

1

Peak wavelength

1.59±0.03

Cut-off wavelength cut-off

1.7

Detectivity

1.0×1012

Responsivity

1.02

Dark current

3.5×10-6

Bandwidth

180

Package

TO39

Window

BK7

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InAs and InAsSb IR detectors

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Image

Name

Active element material

Cooling

Immersion

Optical area

?

AO, mm×mm

dA, mm

Cut-on wavelength (10%)

?

λcut-on, μm

Peak wavelength

?

λpeak, μm

Cut-off wavelength (10%)

?

λcut-off, μm

Current responsivity

?

Ripeak), A/W

Detectivity

?

D* (λpeak, f = 20 kHz), cm⋅Hz1/2/W

Time constant

?

τ, ns

Package

Window

Datasheet

Material

InAs

Cooling

no

Immersion

no

Active area

1×1

Cut-on wavelength cut-on

2.3

Peak wavelength

3.1

Cut-off wavelength cut-off

3.5

Responsivity

0.9

Detectivity

7.0×109

Time constant

35

Package

TO39

Window

no

Material

InAs

Cooling

no

Immersion

no

Active area

d1.2

Cut-on wavelength cut-on

1.3

Peak wavelength

2.9

Cut-off wavelength cut-off

3.6

Responsivity

0.6

Detectivity

5.0×10\(^{9}\)

Time constant

35

Package

SMD

Window

pAl2O3

Material

InAsSb

Cooling

no

Immersion

yes

Active area

1×1

Cut-on wavelength cut-on

2.6

Peak wavelength

4.5±0.5

Cut-off wavelength cut-off

5.3

Responsivity

1.4

Detectivity

5.0×109

Time constant

30

Package

TO39

Window

no

Material

InAsSb

Cooling

1TE

Immersion

no

Active area

1×1

Cut-on wavelength cut-on

2.0

Peak wavelength

4.0±0.5

Cut-off wavelength cut-off

5.5

Responsivity

0.18

Detectivity

1.0×109

Time constant

20

Package

TO39

Window

pSiAR

Material

InAsSb

Cooling

1TE

Immersion

no

Active area

1×1

Cut-on wavelength cut-on

2.0

Peak wavelength

4.4±0.5

Cut-off wavelength cut-off

6.6

Responsivity

0.18

Detectivity

4.3×109

Time constant

40

Package

TO39

Window

pSiAR

Material

InAsSb

Cooling

no

Immersion

yes

Active area

1×1

Cut-on wavelength cut-on

1.8

Peak wavelength

7.1

Cut-off wavelength cut-off

12.0

Responsivity

0.14

Detectivity

7.7×108

Time constant

1.65

Package

TO39

Window

no

Material

InAsSb

Cooling

4TE

Immersion

yes

Active area

1×1

Cut-on wavelength cut-on

1.8

Peak wavelength

6.7

Cut-off wavelength cut-off

11.3

Responsivity

0.55

Detectivity

1.0×1010

Time constant

3

Package

TO8

Window

wZnSeAR

Material

InAsSb

Cooling

4TE

Immersion

yes

Active area

1×1

Cut-on wavelength cut-on

2.0

Peak wavelength

10.5

Cut-off wavelength cut-off

13.6

Responsivity

0.38

Detectivity

3.0×109

Time constant

3

Package

TO8

Window

wZnSeAR

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