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HgCdTe (MCT) Photoconductive Detectors

Photoconductive detectors based on the photoconductive effect. Infrared radiation generates charge carriers in the semiconductor active region decreasing its resistance. The resistance change is sensed as a current change by applying a constant voltage bias.

The devices are characterized by near linear current-voltage characteristics. The electric field in photoconductors is constant across the device.

Engineering sample

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Name

Cooling

Immersion

Peak wavelength

?

\(λ_{peak}\); \(µm\)

Detectivity

?

\(D*(λ_{peak})\); \(cm⋅Hz^{1/2}/W\)

Time constant

?

τ, ns

Package

Datasheet

Cooling

Uncooled

Immersion

No

Wavelength

8.2±0.1

Detectivity

~1.4×10\(^7\)

Time constant

~2

Package

TO39

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Selected Line

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Image

Name

Cooling

Immersion

Optimal wavelength

?

\(λ_{opt}\); \(µm\)

Detectivity

?

\(D*(λ_{opt})\); \(cm⋅Hz^{1/2}/W\)

Time constant

?

τ, ns

Package

Datasheet

Cooling

Three-stage TE cooled

Immersion

Yes

Wavelength

12.0

Detectivity

≥ 9.0×10\(^{8}\)

Time constant

≤ 5

Package

TO8

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All HgCdTe (MCT) Photoconductive Detectors

Filter results

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Image

Name

Cooling

Immersion

Optimal wavelength

?

\(λ_{opt}\); \(µm\)

Detectivity

?

\(D*(λ_{opt})\); \(cm⋅Hz^{1/2}/W\)

Time constant

?

τ, ns

Package

Datasheet

Cooling

Uncooled

Immersion

No

Wavelength

6.0

Detectivity

≥ 3.0×10\(^{8}\)

Time constant

≤ 500

Package

BNC, TO39

Cooling

Uncooled

Immersion

No

Wavelength

5.0

Detectivity

≥ 1.0×10\(^{9}\)

Time constant

≤ 5000

Package

BNC, TO39

Cooling

Uncooled

Immersion

No

Wavelength

9.0

Detectivity

≥ 2.0×10\(^{7}\)

Time constant

≤ 10

Package

BNC, TO39

Cooling

Uncooled

Immersion

No

Wavelength

10.6

Detectivity

≥ 9.0×10\(^{6}\)

Time constant

≤ 3

Package

BNC, TO39

Cooling

Two-stage TE cooled

Immersion

No

Wavelength

5.0

Detectivity

≥ 1.0×10\(^{10}\)

Time constant

≤ 20000

Package

TO8, TO66

Cooling

Two-stage TE cooled

Immersion

No

Wavelength

6.0

Detectivity

≥ 3.0×10\(^9\)

Time constant

≤ 4000

Package

TO8, TO66

Cooling

Two-stage TE cooled

Immersion

No

Wavelength

9.0

Detectivity

≥ 4.5×10\(^{8}\)

Time constant

≤ 40

Package

TO8, TO66

Cooling

Two-stage TE cooled

Immersion

No

Wavelength

10.6

Detectivity

≥ 1.4×10\(^{8}\)

Time constant

≤ 10

Package

TO8, TO66

Cooling

Two-stage TE cooled

Immersion

No

Wavelength

12.0

Detectivity

≥ 4.5×10\(^{7}\)

Time constant

≤ 3

Package

TO8, TO66

Cooling

Two-stage TE cooled

Immersion

No

Wavelength

13.0

Detectivity

≥ 2.3×10\(^{7}\)

Time constant

≤ 2

Package

TO8, TO66

Cooling

Three-stage TE cooled

Immersion

No

Wavelength

9.0

Detectivity

≥ 1.0×10\(^{9}\)

Time constant

≤ 60

Package

TO8, TO66

Cooling

Three-stage TE cooled

Immersion

No

Wavelength

10.6

Detectivity

≥ 2.5×10\(^{8}\)

Time constant

≤ 20

Package

TO8, TO66

Cooling

Three-stage TE cooled

Immersion

No

Wavelength

12.0

Detectivity

≥ 9.0×10\(^{7}\)

Time constant

≤ 5

Package

TO8, TO66

Cooling

Three-stage TE cooled

Immersion

No

Wavelength

13.0

Detectivity

≥ 6.0×10\(^{7}\)

Time constant

≤ 4

Package

TO8, TO66

Cooling

Four-stage TE cooled

Immersion

No

Wavelength

9.0

Detectivity

≥ 1.5×10\(^{9}\)

Time constant

≤ 80

Package

TO8, TO66

Cooling

Four-stage TE cooled

Immersion

No

Wavelength

10.6

Detectivity

≥ 3.5×10\(^{8}\)

Time constant

≤ 30

Package

TO8, TO66

Cooling

Four-stage TE cooled

Immersion

No

Wavelength

12.0

Detectivity

≥ 2.0×10\(^{8}\)

Time constant

≤ 7

Package

TO8, TO66

Cooling

Four-stage TE cooled

Immersion

No

Wavelength

13.0

Detectivity

≥ 1.0×10\(^{8}\)

Time constant

≤ 6

Package

TO8, TO66

Cooling

Four-stage TE cooled

Immersion

No

Wavelength

14.0

Detectivity

≥ 6.0×10\(^{7}\)

Time constant

≤ 5

Package

TO8, TO66

Cooling

Uncooled

Immersion

Yes

Wavelength

5.0

Detectivity

≥ 4.0×10\(^{9}\)

Time constant

≤ 5000

Package

BNC, TO39

Cooling

Uncooled

Immersion

Yes

Wavelength

6.0

Detectivity

≥ 1.0×10\(^{9}\)

Time constant

≤ 500

Package

BNC, TO39

Cooling

Uncooled

Immersion

Yes

Wavelength

9.0

Detectivity

≥ 1.0×10\(^{8}\)

Time constant

≤ 10

Package

BNC, TO39

Cooling

Uncooled

Immersion

Yes

Wavelength

10.6

Detectivity

≥ 8.0×10\(^{7}\)

Time constant

≤ 3

Package

BNC, TO39

Cooling

Two-stage TE cooled

Immersion

Yes

Wavelength

5.0

Detectivity

≥ 2.0×10\(^{10}\)

Time constant

≤ 20000

Package

TO8, TO66

Cooling

Two-stage TE cooled

Immersion

Yes

Wavelength

6.0

Detectivity

≥ 1.0×10\(^{10}\)

Time constant

≤ 4000

Package

TO8, TO66

Cooling

Two-stage TE cooled

Immersion

Yes

Wavelength

9.0

Detectivity

≥ 4.0×10\(^{9}\)

Time constant

≤ 40

Package

TO8, TO66

Cooling

Two-stage TE cooled

Immersion

Yes

Wavelength

10.6

Detectivity

≥ 1.0×10\(^{9}\)

Time constant

≤ 10

Package

TO8, TO66

Cooling

Two-stage TE cooled

Immersion

Yes

Wavelength

12.0

Detectivity

≥ 4.5×10\(^{8}\)

Time constant

≤ 3

Package

TO8, TO66

Cooling

Two-stage TE cooled

Immersion

Yes

Wavelength

13.0

Detectivity

≥ 2.3×10\(^{8}\)

Time constant

≤ 2

Package

TO8, TO66

Cooling

Three-stage TE cooled

Immersion

Yes

Wavelength

9.0

Detectivity

≥ 6.2×10\(^{9}\)

Time constant

≤ 60

Package

TO8, TO66

Cooling

Three-stage TE cooled

Immersion

Yes

Wavelength

10.6

Detectivity

≥ 2.5×10\(^{9}\)

Time constant

≤ 20

Package

TO8, TO66

Cooling

Three-stage TE cooled

Immersion

Yes

Wavelength

12.0

Detectivity

≥ 9.0×10\(^{8}\)

Time constant

≤ 5

Package

TO8, TO66

Cooling

Three-stage TE cooled

Immersion

Yes

Wavelength

13.0

Detectivity

≥ 4.5×10\(^{8}\)

Time constant

≤ 4

Package

TO8, TO66

Cooling

Four-stage TE cooled

Immersion

Yes

Wavelength

9.0

Detectivity

≥ 1.0×10\(^{10}\)

Time constant

≤ 80

Package

TO8, TO66

Cooling

Four-stage TE cooled

Immersion

Yes

Wavelength

10.6

Detectivity

≥ 3.0×10\(^{9}\)

Time constant

≤ 30

Package

TO8, TO66

Cooling

Four-stage TE cooled

Immersion

Yes

Wavelength

12.0

Detectivity

≥ 2.0×10\(^{9}\)

Time constant

≤ 7

Package

TO8, TO66

Cooling

Four-stage TE cooled

Immersion

Yes

Wavelength

13.0

Detectivity

≥ 1.0×10\(^{9}\)

Time constant

≤ 6

Package

TO8, TO66

Cooling

Four-stage TE cooled

Immersion

Yes

Wavelength

14.0

Detectivity

≥ 3.0×10\(^{8}\)

Time constant

≤ 5

Package

TO8, TO66

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