NH₄H₂PO₄ (Ammonium dihydrogen phosphate, ADP)

Glasses, oxides and dielectrics anisotropic

2 datasets, together covering 0.2138–1.529 µm. Default: Zernike et al. 1964: n(o) 0.214–1.53 µm.

Compare datasets

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

Datasets

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# NH4H2PO4 (Ammonium dihydrogen phosphate, ADP): Zernike et al. 1964: n(o) 0.214–1.53 µm
nh4h2po4 = ls.fetch_refractiveindex("main", "NH4H2PO4", "Zernike-o", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(nh4h2po4.range_nm)  # (213.8, 1529) nm
eps = nh4h2po4.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_2472c1e3ec29/lightsmith"
nh4h2po4 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(nh4h2po4.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (nh4h2po4/zernike-1964-o).

# ... load nh4h2po4 as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=nh4h2po4)],
    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 NH4H2PO4 (Ammonium dihydrogen phosphate, ADP)

Ammonium dihydrogen phosphate (NH₄H₂PO₄), commonly known as ADP, is a white, crystalline solid that readily dissolves in water. In the realm of optics, ADP crystals have been employed for various applications due to their nonlinear optical properties. These crystals are particularly valuable for frequency doubling of laser light, especially in the ultraviolet range. ADP crystals exhibit birefringence, which makes them suitable for modulating light and serving as Pockels cells. Additionally, these crystals are used in optical parametric oscillators. Beyond optics, ADP is used as a fertilizer, given its high phosphate content. It also serves as a component in some fire extinguishers and is involved in various biological processes as a source of phosphorus and nitrogen.

Other names: Ammonium dihydrogen phosphate, ADP, Ammonium dihydrogen phosphate, ADP, Monoammonium phosphate, MAP, Ammonium phosphate

Monoammonium phosphate - Wikipedia

API: /v1/materials/mat_c2c2768e7bb6 · slug nh4h2po4