Confused with the spectrum of optical photon

Particles, Track, Event, Run and Biasing
1

Hello,I want to simulate ZnS scintillator and set the properties as below
const G4int nEntries = 2;
G4double PhotonEnergy[nEntries] = {1.0eV,7.0eV};
//
G4double ZnSRefractionIndex[nEntries] = {1.58,1.58};
G4double ZnSAbsorption[nEntries] = {15.*cm,20.*cm};
G4double ScinFast[nEntries] = {1.0,1.0};

    G4MaterialPropertiesTable *ZnSMPT = new G4MaterialPropertiesTable();

    ZnSMPT->AddProperty("RINDEX",PhotonEnergy,ZnSRefractionIndex,nEntries);
    ZnSMPT->AddProperty("SCINTILLATIONCOMPONENT1", PhotonEnergy, ScinFast,nEntries, false, true);
    ZnSMPT->AddProperty("ABSLENGTH",PhotonEnergy,ZnSAbsorption,nEntries);
    ZnSMPT->AddConstProperty("SCINTILLATIONYIELD",5000./MeV);
    ZnSMPT->AddConstProperty("RESOLUTIONSCALE",1.);
    ZnSMPT->AddConstProperty("SCINTILLATIONTIMECONSTANT1",2.4 * ns);

But,what’s the meaning of G4double PhotonEnergy[nEntries] = {1.0eV,7.0eV};?
Does it mean that the spectrum of optical photon producted by ZnS is a uniform distribution between 1ev and 7ev?

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