Computationally image-corrected dual-comb microscopy with a free-running single-cavity dual-comb fiber laser

Autor: Takeshi Yasui, Kaoru Minoshima, Takeo Minamikawa, Takuya Tsuda, Akifumi Asahara, Takashi Kato, Takahiko Mizuno, Yuya Hata, Yoshiaki Nakajima
Rok vydání: 2021
Předmět:
Zdroj: Optics express. 29(4)
ISSN: 1094-4087
Popis: Dual-comb microscopy (DCM), an interesting imaging modality based on the optical-frequency-comb (OFC) mode and image pixel one-to-one correspondence, benefits from scan-less full-field imaging and simultaneous confocal amplitude and phase imaging. However, the two fully frequency-stabilized OFC sources requirement hampers DCM practicality due to the complexity and costs. Here, a bidirectional single-cavity dual-comb fiber laser (SCDCFL) is adopted as a DCM low-complexity OFC source. Computational image correction reduces the image blur caused by the SCDCFL residual timing jitter. Nanometer-order step surface profilometry with a 14.0 nm uncertainty highlights the image-corrected DCM effectiveness. The proposed method enhances the DCM versality and practicality.
Comment: 25 pages, 7 figures
Databáze: OpenAIRE