Photoconductive-Antenna Field
Calculate photoconductive-antenna bias field across the electrode gap.
Description
An electrode-gap bias-field estimate divides voltage by gap length.
An electrode-gap bias-field estimate divides voltage by gap length. The sign follows applied voltage.1
Calculate photoconductive-antenna bias field across the electrode gap.
When to use Photoconductive-Antenna Field
Use this tool to calculate photoconductive-antenna bias field across the electrode gap.
Prepare the optical measurements, geometry, fitted coefficients or caller-selected thresholds requested. Confirm wavelength, radius/diameter, pulse-width, angle and unit conventions before running the calculation.
How to use Photoconductive-Antenna Field and understand its results
- Prepare the optical measurements, geometry, fitted coefficients or caller-selected thresholds requested. Confirm wavelength, radius/diameter, pulse-width, angle and unit conventions before running the calculation.
- Enter biasVoltageVolts, electrodeGapMeters using the field table and calculation rules, then run the tool.
- Read electricFieldVoltsPerMeter. The explanation below defines the units, signs, ordering and any flags or placeholder values.
- If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.
| Input field | Meaning | Value type; see rules below | Requirement |
|---|---|---|---|
| biasVoltageVolts | Bias voltage (V) | number | Required |
| electrodeGapMeters | Electrode gap (m) | number; minimum: 0 | Required |
Enter finite signed bias and positive gap meters. Return V/m.
field=voltage/gap Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| electricFieldVoltsPerMeter | Gap electric field (V/m) | number |
{
"input": {
"biasVoltageVolts": 100,
"electrodeGapMeters": 0.001
},
"output": {
"electricFieldVoltsPerMeter": 100000
}
}Limitations and assumptions
No fringe fields, breakdown, carrier dynamics or THz emission is calculated.
Numeric inputs must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.
Alternative or Complementary methods
Use THz Complex Conductivity: Convert complex relative permittivity to complex conductivity under an exp(-iωt) convention. For a complementary task, use THz Waveform Spectrum: Compute a direct discrete magnitude spectrum from a THz time-domain waveform.
References
-
Photoconductive-Antenna Field — tool.io
Similar or alternative tools
- THz Complex Conductivity
Convert complex relative permittivity to complex conductivity under an exp(-iωt) convention.
- THz Waveform Spectrum
Compute a direct discrete magnitude spectrum from a THz time-domain waveform.