keying ultrashort luteal GMSK quadrature interferometry 60Qp194 SLMs modelization AFm CSRZ epitaxy oscillator VCO amplitude GRENOUILLE interferogram Xincun pQpi bispectrum microemulsion modulation VFO CAMEL oscillators Multiphoton telogen discriminator BPSK Reetou colorburst Lekki metalorganic Pancharatnam Domjur modulated phasor