Session Index

Quantum Electronics and Laser Technology

Quantum Electronics and Laser Technology II
Thursday, Dec. 3, 2020  16:20-17:50
Presider: Prof. Yin-Wen Lee
Prof. Hsu-Hsin Chu
Room: 6AB Room 325
16:20 - 16:50 Manuscript ID.  0818
Paper No.  2020-THU-S0302-I001
Invited Speaker:
Shibin Jiang

Single Frequency High Peak Power Fiber Lasers for Lidar and Micromachining
Shibin Jiang

We successfully developed a series of single frequency fiber lasers with greater
than 1mJ pulse energy at wavelength of 1micron, 1.55micron, and 2micron, which represent
the highest pulse energy of such types of lasers in the world to the best of our knowledge.
Their applications for Lidar and micromachining process will be presented.

16:50 - 17:05 Manuscript ID.  0559
Paper No.  2020-THU-S0302-O001
Hao-Hsuan Hung
Award Candidate
Generation of sub-megawatt-peak-power femtosecond pulses from a single 24MHz Cr:forsterite oscillator for video-rate three-photon microscopy
Hao-Hsuan Hung;Lu-Ting Chou;Dong-Lin Zhong;Chao-Hsu Wen;Chao-Jin Jan;Zi-Ping Chen;Shih-Hsuan Chia

We have obtained sub-megawatt-peak-power femtosecond pulses around 1.3µm driven by a 24-MHz Cr:forsterite oscillator and a piece of optical fiber, by carefully controlling the intracavity dispersion and nonlinear fiber-optic conversion. The compactness of our demonstration with a 24-MHz repetition rate will enable video-rate deep-tissue observation via GFP-based three-photon fluorescence microscopy.

17:05 - 17:20 Manuscript ID.  0646
Paper No.  2020-THU-S0302-O002
Yu-Chun Chen
Award Candidate
Volume holographic light sheet microscopy using Bessel beams for live imaging of Caenorhabditis elegans
Yu-Chun Chen;Ting-Yu Hsieh;Sunil Vyas;Kuang-Yuh Huang;Yuan Luo

To image volumetric biological samples optical sectioning capability is required. Here, we propose a compact Bessel light sheet fluorescence microscope (LSFM) using volume holographic grating (VHG) for real time high resolution volumetric imaging of Caenorhabditis elegans (C. elegans). A photopolymer (PQ-PMMA) based VHG is designed to generate Bessel beam.

17:20 - 17:35 Manuscript ID.  0318
Paper No.  2020-THU-S0302-O003
Lu-Ting Chou
Award Candidate
A compact femtosecond fiber source tunable between 740-1236 nm for wide two-photon fluorescence microscopy applications
Lu-Ting Chou;Yu-Cheng Liu;Dong-lin Zhong;Ming-Che Chan;Shih-Hsuan Chia

By controlling the fiber-optic nonlinearity, we have demonstrated and characterized a compact nJ-level femtosecond fiber source widely-tunable between 740-1236 nm, covering the most two-photon-excitation wavelengths for deep-tissue microscopy applications. We believe the robustness and applicability of this source have made it a promising substitution of Ti:sapphire-based systems for biomedical imaging.

17:35 - 17:50 Manuscript ID.  0283
Paper No.  2020-THU-S0302-O004
Chih-Yuan Tsai
Award Candidate
Sub-terahertz Photoacoustic Pulse Generation using Platinum Nanofilms
Chi-Kuang Sun;Chih-Yuan Tsai

Platinum is strong electron-phonon-coupling metal and is expected to provide ultrahigh frequency photoacoustic pulse. Here we report our study on the sub-terahertz (THz) photoacoustic pulse generation using platinum nanofilms. With an average thickness of 0.9 nm, 0.38 THz central frequency photoacoustic pulse was successfully measured after femtosecond optical excitation.