We report a phase-resolved photometric and morphological analysis of UBV data of the Crab pulsar obtained with the 2-d TRIFFID high speed optical photometer mounted on the Russian 6m telescope .
By being able to accurately isolate the pulsar from the nebular background at an unprecedented temporal resolution ( 1 \mu s ) , the various light curve components were accurately fluxed via phase-resolved photometry .
Within the UBV range , our datasets are consistent with the existing trends reported elsewhere in the literature .
In terms of flux and phase duration , both the peak Full Width Half Maxima and Half Width Half Maxima decrease as a function of photon energy .
This is similarly the case for the flux associated with the bridge of emission .
Power-law fits to the various light curve components are as follows ; \alpha = 0.07 \pm 0.19 ( peak 1 ) , \alpha = -0.06 \pm 0.19 ( peak 2 ) and \alpha = -0.44 \pm 0.19 ( bridge ) - the uncertainty here being dominated by the integrated CCD photometry used to independently reference the TRIFFID data .
Temporally , the main peaks are coincident to \leq 10 \mu s although an accurate phase lag with respect to the radio main peak is compromised by radio timing uncertainties .
The plateau on the Crab ’ s main peak was definitively determined to be \leq 55 \mu s in extent and may decrease as a function of photon energy .
There is no evidence for non-stochastic activity over the light curves or within various phase regions , nor is there evidence of anything akin to the giant pulses noted in the radio .
Finally , there is no evidence to support the existence of a reported 60 second modulation suggested to be as a consequence of free precession .