{'fraction_non_alphanumeric': 0.023809523809523808, 'fraction_numerical': 0.006493506493506494, 'mean_word_length': 5.012987012987013, '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}}
Near-Field Optical Probing Using a Microaperture GaInAs/GaAs Surface Emitting Laser

We propose the use of a microaperture vertical cavity surface emitting laser (VCSEL) for near-field optical probing. We present the first demonstration of two-dimensional imaging using the voltage change signal from a microaperture VCSEL, which is induced by interaction with an object. The spatial resolution of the image is below 200 nm, which is one fifth of the wavelength.