{'fraction_non_alphanumeric': 0.018581081081081082, 'fraction_numerical': 0.0, 'mean_word_length': 5.738636363636363, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Spectral transfer function of a periodic multistack including Veselago layers: formal analogy with the Airy function of a Fabry-Perot resonator

We theoretically investigate a periodic multistack made of alternating layers of positive and negative refractive index. Under normal incidence, its transfer function exhibits spectral resonances highly reminiscent of the Airy function of a classical Fabry-Perot resonator. We use Transfer Matrix Formalism and Coupled-Mode Theory to rigorously establish that analogy, which stems from a deep, although hidden, identity between the two structures.