Pd (Palladium)

Metals and conductors

7 datasets, together covering 0.00236–12.4 µm. Default: Johnson and Christy 1974: n,k 0.188–1.94 µm.

Compare datasets

Tick datasets in the list to add them to the plot (up to 12).

Datasets

Experimental data

Models and simulations

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# Pd (Palladium): Johnson and Christy 1974: n,k 0.188–1.94 µm
pd = ls.fetch_refractiveindex("main", "Pd", "Johnson", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(pd.range_nm)  # (188, 1937) nm
eps = pd.eps([633])  # complex permittivity

Downloads the original record once (pinned to the imported snapshot) and caches it.

import json, urllib.request
import lightsmith as ls

url = "https://materials.lightsmith.dev/v1/datasets/ds_d9979aa5e6d1/lightsmith"
pd = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(pd.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (pd/johnson-christy-1974).

# ... load pd as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=pd)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=400, stop_nm=1000, num=81),
)
res = ls.solve(sim)  # exact Mie for a sphere
print(res.q_ext)     # extinction efficiency at each wavelength

Same spec runs with DDA, FDTD, BEM or T-matrix: ls.compare(sim, ["mie", "dda"]).

Materials guide Open a sphere of it in Studio Quick start Ask the community

Lightsmith is open source (MIT): Mie, T-matrix, BEM, DDA, FDTD, RCWA, TMM, mode solvers and inverse design behind one spec, on CPU or GPU. GitHub.

About Pd (Palladium)

Palladium (Pd) is a lustrous silvery-white metal that belongs to the platinum group metals (PGMs). It is renowned for its outstanding catalytic properties, especially in hydrogenation reactions. Due to its ability to readily absorb hydrogen, palladium serves as an essential component in hydrogen storage and purification technologies. In the electronics sector, palladium is used for plating connectors, primarily because of its excellent conductivity and resistance to oxidation. Additionally, Pd-based compounds and alloys find applications in jewelry, dentistry, and the production of certain types of fuel cells. In the optical domain, thin palladium films can serve as semi-transparent coatings, allowing for specific optical behaviors such as controlled reflectivity.

Other names: Palladium

API: /v1/materials/mat_d362b40becf6 · slug pd