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Output Photo Current Formula

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Photocurrent is the electrical current produced by the photodetector when exposed to light. Check FAQs

I p = η \cdot P i \cdot \frac{[Charge-e]}{[hP] \cdot f}

I_p - Photocurrent?η - Quantum Efficiency?P_i - Incident Optical Power?f - Frequency Of Incident Light?[Charge-e] - Charge of electron?[hP] - Planck constant?

Output Photo Current Example

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Here is how the Output Photo Current equation looks like with Values.

Here is how the Output Photo Current equation looks like with Units.

Here is how the Output Photo Current equation looks like.

2.2E+16 = 0.3 \cdot 6 \cdot \frac{1.6E-19}{6.6E-34 \cdot 20}

2.2E+16mA = 0.3 \cdot 6W \cdot \frac{1.6E-19C}{6.6E-34 \cdot 20Hz}

2.2E+16 = 0.3 \cdot 6 \cdot \frac{1.6E-19}{6.6E-34 \cdot 20}

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Output Photo Current Solution

Follow our step by step solution on how to calculate Output Photo Current?

FIRST Step Consider the formula

I p = η \cdot P i \cdot \frac{[Charge-e]}{[hP] \cdot f}

Next Step Substitute values of Variables

∴

I p = 0.3 \cdot 6W \cdot \frac{[Charge-e]}{[hP] \cdot 20Hz}

Next Step Substitute values of Constants

∴

I p = 0.3 \cdot 6W \cdot \frac{1.6E-19C}{6.6E-34 \cdot 20Hz}

Next Step Prepare to Evaluate

∴

I p = 0.3 \cdot 6 \cdot \frac{1.6E-19}{6.6E-34 \cdot 20}

Next Step Evaluate

∴

I p = 21761903349877.7A

Next Step Convert to Output's Unit

∴

I p = 2.17619033498777E+16mA

LAST Step Rounding Answer

∴

I p = 2.2E+16mA

Output Photo Current Formula Elements

Variables

Constants

Photocurrent

Photocurrent is the electrical current produced by the photodetector when exposed to light.

Symbol: I_p

Measurement: Electric CurrentUnit: mA

Note: Value should be greater than 0.

Formulas to find Photocurrent

Quantum Efficiency

Quantum Efficiency represents the probability that a photon incident on the photodetector will generate an electron-hole pair, leading to a photocurrent.

Symbol: η

Measurement: NAUnit: Unitless

Note: Value should be between 0 to 1.

Formulas to find Quantum Efficiency

Incident Optical Power

Incident Optical Power is a measure of the rate at which light carries energy. It represents the amount of optical energy transmitted per unit of time.

Symbol: P_i

Measurement: PowerUnit: W

Note: Value should be greater than 0.

Formulas to find Incident Optical Power

Frequency Of Incident Light

Frequency of incident light is a measure of how many cycles (oscillations) of the electromagnetic wave occur per second.

Symbol: f

Measurement: FrequencyUnit: Hz

Note: Value should be greater than 0.

Formulas to find Frequency Of Incident Light

Charge of electron

Charge of electron is a fundamental physical constant, representing the electric charge carried by an electron, which is the elementary particle with a negative electric charge.

Symbol: [Charge-e]

Value: 1.60217662E-19 C

Planck constant

Planck constant is a fundamental universal constant that defines the quantum nature of energy and relates the energy of a photon to its frequency.

Symbol: [hP]

Value: 6.626070040E-34

Other formulas in C V Actions of Optics Transmission category

Go Dark Current Noise

i d = 2 \cdot B \cdot [Charge-e] \cdot I d

Go Junction Capacitance of Photodiode

C j = ε r \cdot \frac{A j}{w}

Go Load Resistor

R L = \frac{1}{2 \cdot π \cdot B \cdot C}

Go Noise Equivalent Power

NEP = [hP] \cdot [c] \cdot \frac{\sqrt{2 \cdot e \cdot I d}}{η \cdot e \cdot λ}

How to Evaluate Output Photo Current?

Output Photo Current evaluator uses Photocurrent = Quantum Efficiency*Incident Optical Power*[Charge-e]/([hP]*Frequency Of Incident Light) to evaluate the Photocurrent, Output Photo Current is the electrical current generated by the photodetector when exposed to incident light or radiation. Photocurrent is denoted by I_p symbol.

How to evaluate Output Photo Current using this online evaluator? To use this online evaluator for Output Photo Current, enter Quantum Efficiency (η), Incident Optical Power (P_i) & Frequency Of Incident Light (f) and hit the calculate button.

FAQs on Output Photo Current

What is the formula to find Output Photo Current?

The formula of Output Photo Current is expressed as Photocurrent = Quantum Efficiency*Incident Optical Power*[Charge-e]/([hP]*Frequency Of Incident Light). Here is an example- 2.2E+13 = 0.3*6*[Charge-e]/([hP]*20).

How to calculate Output Photo Current?

With Quantum Efficiency (η), Incident Optical Power (P_i) & Frequency Of Incident Light (f) we can find Output Photo Current using the formula - Photocurrent = Quantum Efficiency*Incident Optical Power*[Charge-e]/([hP]*Frequency Of Incident Light). This formula also uses Charge of electron, Planck constant .

Can the Output Photo Current be negative?

No, the Output Photo Current, measured in Electric Current cannot be negative.

Which unit is used to measure Output Photo Current?

Output Photo Current is usually measured using the Milliampere[mA] for Electric Current. Ampere[mA], Microampere[mA], Centiampere[mA] are the few other units in which Output Photo Current can be measured.

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Output Photo Current Formula

Output Photo Current Example

Output Photo Current Solution

Output Photo Current Formula Elements

Other formulas in C V Actions of Optics Transmission category

How to Evaluate Output Photo Current?

FAQs on Output Photo Current

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