Zobrazeno 1 - 10
of 251
pro vyhledávání: '"Hong Jin Kong"'
Publikováno v:
Sensors, Vol 24, Iss 1, p 17 (2023)
In this study, we simultaneously measured the group refractive index dispersion and thickness of fused silica using a scanning white light interferometer on a spectral range from 800 to 1050 nm. A delay error correction was performed using a He-Ne la
Externí odkaz:
https://doaj.org/article/6ed5be6b9df54ba0a576b2c961089d11
Publikováno v:
Journal of the Korean Physical Society. 76:819-823
Laser processing is an effective way for precisely and accurately removing a small region of materials without tool wear. Conventional laser processing, which has a limitation on the processing speed, is performed by scanning a single spot on a targe
Publikováno v:
High Power Laser Science and Engineering. 10
Thermal effects are typically considered as obstacles to high-repetition-rate stimulated Brillouin scattering (SBS) pulse compression. In this paper, a novel method is proposed for improving the SBS output characteristics by exploiting thermal effect
Publikováno v:
Optics Express. 30:38995
Thermal problems of high-repetition-rate stimulated Brillouin scattering (SBS) pulse compression in liquid media are theoretically and experimentally analyzed in detail. A wedge lens with less coma-aberration was designed using the ray tracing method
Publikováno v:
EPJ Web of Conferences. 2013, Issue 59, p1-6. 6p.
Publikováno v:
Optics & Laser Technology. 128:106258
This study is focused on constructing a highly stable diode-pumped solid-state laser system by conducting experiments on high-repetition-rate SBS pulse compression using bulk fused silica. A multi-rod serial-connection structure is adopted for SBS ex
Publikováno v:
Optics Communications. 333:6-10
We analyze the ray-optical aberrations in a concentric imaging spectrometer composed of one convex grating and two concave mirrors of different radii. We assume that the system is generally not telecentric. First we derive aberration functions of Sei
Autor:
Hong Jin Kong, Hee Kyung Ahn
Publikováno v:
Applied Physics B. 123
A cascaded multi-dithering (CMD) technique using piezoelectric ceramic transducer (PZT) tubes as phase modulators is proposed as a tool for obtaining high control bandwidth in coherent laser beam combination. To prove its validity, eight coherent fib
Publikováno v:
Applied Physics B. 118:7-10
A modified multi-dithering theory (M-LOCSET) with piezoelectric ceramic transducer (PZT) tubes as phase modulators is presented. It can overcome the insufficient bandwidth control of PZT tubes for combining beams, while highlighting the merits of the
Publikováno v:
Optics Express. 27:29789
With mitigation of thermal effects in a generator cell based on a rotating off-centered lens, the effects of thermal blooming, self-defocusing, and thermal convection in the amplifier cell have experimentally proven to be the main factors limiting hi