Nanorod Heating Estimate
Estimate adiabatic sample heating from absorbed nanorod illumination.
Description
An adiabatic heating estimate allocates absorbed optical energy to a supplied sample heat capacity.
An adiabatic heating estimate allocates absorbed optical energy to a supplied sample heat capacity. All absorbed energy is retained in this model.1
Estimate adiabatic sample heating from absorbed nanorod illumination.
When to use Nanorod Heating Estimate
Use this tool to estimate adiabatic sample heating from absorbed nanorod illumination.
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 Nanorod Heating Estimate 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 incidentPowerWatts, absorbedFraction, heatingSeconds, sampleMassGrams, specificHeatJPerGramK using the field table and calculation rules, then run the tool.
- Read absorbedEnergyJoules, adiabaticTemperatureRiseKelvin. 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 |
|---|---|---|---|
| incidentPowerWatts | Incident optical power (W) | number; minimum: 0 | Required |
| absorbedFraction | Absorbed power fraction | number; minimum: 0; maximum: 1 | Required |
| heatingSeconds | Heating duration (s) | number; minimum: 0 | Required |
| sampleMassGrams | Heated sample mass (g) | number; minimum: 0 | Required |
| specificHeatJPerGramK | Sample specific heat (J/(g·K)) | number; minimum: 0 | Required |
Enter nonnegative power/time, absorption fraction 0–1 and positive mass and J/(g·K) heat capacity. Return absorbed joules and temperature rise.
energy=power×absorbedFraction×time; ΔT=energy/(mass_g×specificHeat) Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| absorbedEnergyJoules | Absorbed energy (J) | number; minimum: 0 |
| adiabaticTemperatureRiseKelvin | Adiabatic temperature rise (K) | number; minimum: 0 |
{
"input": {
"incidentPowerWatts": 1,
"absorbedFraction": 0.5,
"heatingSeconds": 2,
"sampleMassGrams": 1,
"specificHeatJPerGramK": 4
},
"output": {
"absorbedEnergyJoules": 1,
"adiabaticTemperatureRiseKelvin": 0.25
}
}Limitations and assumptions
Heat loss, phase changes, spatial gradients and nanorod-specific optical response are excluded.
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 Photothermal Diffusivity: Infer thermal diffusivity from photothermal-wave phase lag at a known offset. For a complementary task, use Diode-Stack Heat Flux: Calculate diode-stack waste heat and cooled-footprint heat flux.
References
-
Nanorod Heating Estimate — tool.io
Similar or alternative tools
- Photothermal Diffusivity
Infer thermal diffusivity from photothermal-wave phase lag at a known offset.
- Diode-Stack Heat Flux
Calculate diode-stack waste heat and cooled-footprint heat flux.