KH2PO4 (Potassium dihydrogen phosphate, KDP)
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.
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Use it in Lightsmith
Load this data in Python, simulate in one more line
pip install lightsmith
import lightsmith as ls
# KH2PO4 (Potassium dihydrogen phosphate, KDP): Zernike et al. 1964: n(o) 0.214–1.53 µm
kh2po4 = ls.fetch_refractiveindex("main", "KH2PO4", "Zernike-o", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(kh2po4.range_nm) # (213.8, 1529) nm
eps = kh2po4.eps([633]) # complex permittivityDownloads 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_cd6480e31c92/lightsmith"
kh2po4 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(kh2po4.source) # citation and provenance travel with the dataAny dataset here, as the library's Tabulated material (kh2po4/zernike-1964-o).
# ... load kh2po4 as above, then:
sim = ls.Simulation(
particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=kh2po4)],
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 wavelengthSame spec runs with DDA, FDTD, BEM or T-matrix: ls.compare(sim, ["mie", "dda"]).
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 KH2PO4 (Potassium dihydrogen phosphate, KDP)
Potassium dihydrogen phosphate, commonly known as KDP (KH2PO4), is a widely used nonlinear optical crystal, especially esteemed for its applications in laser technology. It serves as an efficient frequency converter and is often deployed for second and third harmonic generation, as well as for electro-optical modulation. KDP's transparency range is quite broad, extending from the ultraviolet to the infrared spectrum. Another advantage of this material is its relatively low cost and ease of large-scale production, which makes it particularly useful for high-power laser systems. It does, however, have lower damage thresholds compared to some other nonlinear optical materials. KDP is also hygroscopic, requiring careful handling to prevent moisture-related degradation. Overall, KDP remains a cornerstone material in nonlinear optics and laser science.
Other names: Potassium dihydrogen phosphate, KDP, Potassium dihydrogen phosphate, KDP, Monopotassium phosphate, Monobasic potassium phosphate, MKP
API: /v1/materials/mat_e65bf2433229 · slug kh2po4