研究発表 - 洪研究室　横浜国立大学

洪･赤松研の研究発表（2021年洪･赤松研発足以降）

論文

	2025年
35	R. Takeda, S. Aoyama, K. Sato, F.-L. Hong, T. Horikiri, and D. Akamatsu, "Development of a frequency-stabilized pump source at 436 nm for 606 nm–1.5 μm entangled photon pair generation," Appl. Opt. 64, 8187 (2025).
34	Y. Kondo, S. Yamauchi, Y. Kawai, T. Kohno, D. Akamatsu and F.-L. Hong, "Frequency measurement of hyperfine transitions of the R(158)25-0 iodine line near the ¹S₀–³P₁ transition of ¹⁷⁴Yb," Jpn. J. Appl. Phys. 64, 098001 (2025).
33	Thomas Lindvall, Marco Pizzocaro, Rachel M. Godun, Michel Abgrall, Daisuke Akamatsu, et al., "Coordinated international comparisons between optical clocks connected via fiber and satellite links," Optica 12, 843-852 (2025).
32	R. Amaki, Y. Sugiyama, Y. Shitaka, Y. Isawa, T. Tsuno, D. Yoshida, K. Nagano, T. Horikiri, D. Akamatsu, and F.-L. Hong, "Enhancing dual-band stabilization for twin-field quantum key distribution using laser frequency stabilization," Jpn. J. Appl. Phys. 64, 062004 (2025).
31	T. Kashimura, Y. Sugiyama, S. Wu, Y. Nakajima, W. Kokuyama, D. Akamatsu, and F.-L. Hong, "Development of a 1 Hz relative linewidth Er:fiber comb utilizing a semiconductor saturable absorber mirror," Jpn. J. Appl. Phys. 64, 022005 (2025).
	2024年
30	P. Morzyński, S. Bilicki, M. Bober, D. Kovačić, R. Ciuryło, M. Zawada, J. Nawrocki, P. Dunst, T. Kobayashi, K. Hosaka and D. Akamatsu, "Intercontinental frequency ratio measurement of ¹⁷¹Yb and ⁸⁸Sr optical lattice clocks," Metrologia, 61, 045009 (2024).
29	T. Kobayashi, D. Akamatsu, K. Hosaka, Y. Hisai, A. Nishiyama, A. Kawasaki, M. Wada, H. Inaba, T. Tanabe, T. Suzuyama, F.-L. Hong, and M. Yasuda, "Generation of a precise time scale assisted by a near-continuously operating optical lattice clock," Phys. Rev. Applied 21, 064015 (2024).
28	S. Matsunaga, Y. Isawa, D. Akamatsu, and F.-L. Hong, "Optical Frequency References at 1542 nm: Precision Spectroscopy of the R(106)50-0, R(100)49-0, R(84)47-0, R(59)45-0, P(82)47-0, and P(71)46-0 Lines of ¹²⁷I₂ at 514 nm," Photonics 11, 770 (2024).
27	Y. Sugiyama, Y. Kondo, T. Horikiri, D. Akamatsu, and F.-L. Hong, "Phase locking and absolute frequency stabilization of laser sources for a Pr:YSO quantum memory," Appl. Phys. Express 17, 052002 (2024).
26	Y. Sakamoto, Y. Kawai, D. Akamatsu, and F.-L. Hong, "Precision spectroscopy of iodine absorption lines near the ¹S₀-³P₂ transition of Yb atoms at 507 nm," Jpn. J. Appl. Phys. 63, 032006 (2024).
25	S. Matsunaga, R. Kato, M. Yoshiki, D. Akamatsu, and F.-L. Hong, "Analysis of the interaction-length dependence of frequency stability in an iodine-stabilized Nd:YAG laser," Appl. Opt. 63, 2078 (2024).
24	T. Masuko, D. Yoshida, A. Aidai, F.-L. Hong, and T. Horikiri, "Frequency-multiplexed on-demand storage in five modes of atomic frequency comb through simultaneous application of control pulses," Appl. Opt. 63, 1875 (2024).
23	K. Minaguchi, T. Masuko, Y. Nodaguchi, D. Yoshida, I. Nakamura, F.-L. Hong, and T. Horikiri, "Characterisation of storage efficiency in magnetic field for extending coherence time of Pr:YSO quantum memory," Jpn. J. Appl. Phys. 63, 018005 (2024).
	2023年
22	J. Nomura, D. Akamatsu, and F.-L. Hong, “Linewidth narrowing and frequency stabilization of a coin-sized laser module,” Opt. contin. 2, 2552 (2023).
21	M. Tanaka, S. Suetomo, N. Osato, S. Shinkawa, F.-L. Hong, and D. Akamatsu, “Optical levitation in high vacuum using a 0.9-numerical-aperture lens,” Opt. contin. 2, 2069 (2023).
20	S. Okubo, K. Iwakuni, H. Kato, F.-L. Hong, H. Sasada, H. Inaba, K. M.T. Yamad, “The pressure effect on the line profiles observed in the 𝜈₁ + 𝜈₃ band of acetylene: Revisited,” J. Mol. Spectrosc. 396, 111823 (2023).
19	M. Yoshiki, S. Matsunaga, K.Ikeda, D. Akamatsu, and F.-L. Hong, “Rotation dependence of v′ = 44 excited-state hyperfine constants obtained via precise measurements of the hyperfine structures of 127I2 lines near 514 nm,” Eur. Phys. J. D 77, 140 (2023).
18	M. Ichihara, D. Yoshida, F.-L. Hong, and T. Horikiri, “Frequency-multiplexed Hong-Ou-Mandel interference,” Phys. Rev. A 107, 032608 (2023).
17	K. Ito, T. Kondo, K. Mannami, K. Niizeki, D. Yoshida, K. Minaguchi, M. Zheng, X. Xie, F.-L. Hong, and Tomoyuki Horikiri, “Frequency-Multiplexed Storage and Distribution of Narrowband Telecom Photon Pairs over a 10-km Fiber Link with Long-Term System Stability,” Phys. Rev. Applied 19, 024070 (2023).
16	Y. Sugiyama, T. Kashimura, K. Kashimoto, D. Akamatsu, and F.-L. Hong, “Precision dual-comb spectroscopy using wavelength-converted frequency combs with low repetition rates,” Scientific Reports 13, 2549 (2023).
15	J. Nomura, T. Momma, Y. Kojima, Y. Hisai, T. Kobayashi, D. Akamatsu, and F.-L. Hong, “Direct loading of Yb atoms into a 3D magneto-optical trap from a dispenser atomic source,” AIP Advances 13, 025361 (2023).
	2022年
14	Y. Tanabe, Y. Sakamoto, T. Kohno, D. Akamatsu and F.-L. Hong, "Frequency references based on molecular iodine for the study of Yb atoms using the ¹S₀ – ³P₁ intercombination transition at 556 nm," Opt. Express 30, 46487 (2022).
13	T. Kobayashi, A. Takamizawa, D. Akamatsu, A. Kawasaki, A. Nishiyama, K. Hosaka, Y. Hisai, M. Wada, H. Inaba, T. Tanabe, M. Yasuda, "Search for ultralight dark matter from long-term frequency comparisons of optical and microwave atomic clocks," Phys. Rev. Lett. 129, 241301 (2022).
12	D. Yoshida, M. Ichihara, T. Kondo, F.-L. Hong and T. Horikiri, "Single-shot high-resolution identification of discrete frequency modes of single-photon-level optical pulses," Phys. Rev A 106, 052602 (2022).
11	K. Ikeda, T. Kobayashi, M. Yoshiki, D. Akamatsu and F.-L. Hong, "Hyperfine structure and absolute frequency of ¹²⁷I₂ transitions at 514 nm for wavelength standards at 1542 nm," J. Opt. Soc. Am B 39, 2264 (2022).
10	T. Kondo, S. Shindo, D. Yoshida, Y. Goji, M. Nishihara, T. Aizawa, F.-L. Hong and T. Horikiri, "Transfer of linewidth and frequency stability from an iodine-stabilized Nd:YAG laser to a quantum memory control laser through an optical frequency comb," Jpn. J. Appl. Phys. 61, 088003 (2022).
9	H. Hisai, Y. Nishida, H. Miyazawa, T. Kobayashi, F.-L. Hong and D. Akamatsu, "Generation of 116 mW output power at 461 nm in a periodically poled lithium niobate waveguide," Jpn. J. Appl. Phys. 61, 020701 (2022).
8	Y. Kojima, K. Ikeda, Y. Tanabe, D. Akamatsu and F.-L. Hong, "Laser frequency measurement at the short-wavelength region using an intermediate laser and a frequency noise cancellation method," Opt. Lett. 47, 30 (2022).
	2021年
7	K. Mannami, T. Kondo, T. Tsuno, T. Miyashita, D. Yoshida, K. Ito, K. Niizeki, I. Nakamura, F.-L. Hong and T. Horikiri, "Coupling of a quantum memory and telecommunication wavelength photons for high-rate entanglement distribution in quantum repeaters," Opt. Express 29, 41522 (2021).
6	T. Miyashita, T. Kondo, K. Ikeda, K. Yoshii, F.-L. Hong and T. Horikiri, "Offset-locking-based frequency stabilization of external cavity diode lasers for long-distance quantum communication," Jpn. J. Appl. Phys. 60, 122001 (2021).
5	K. Yoshii, C. Chen, H. Sakagami, and F.-L. Hong, "Hyperfine structure of molecular iodine measured using a light source with a laser linewidth at the megahertz level," OSA Continuum 4, 1452 (2021).
4	S. Kawamura, et al. (including F.-L. Hong and other 88 authors), “Current status of space gravitational wave antenna DECIGO and B-DECIGO,” Prog. Theor. Exp. Phys. accepted (2021).
3	H. Kato, Y. Sugiyama, K. Yoshii, and F.-L. Hong, "Spectral normalization in dual-comb spectroscopy of acetylene using a liquid nitrogen trap," J. Opt. Soc. Am B 38, 1024 (2021).
2	Y. Hisai, D. Akamatsu, T. Kobayashi, K. Hosaka, H. Inaba, T. Suzuyama, F.-L. Hong, and M. Yasuda, "Improved frequency ratio measurement with ⁸⁷Sr and ¹⁷¹Yb optical lattice clocks at NMIJ," Metrologia 58, 015008 (2021).
1	Y. Goji, C. Chen, K. Ikeda, K. Yoshii, and F.-L. Hong, "Towards generation of optical frequency comb in the short-wavelength visible region using periodically poled lithium niobate waveguides," Results in Optics 2, 100035 (2021).

総説・解説等

	2025年
4	洪鋒雷：量子中継におけるレーザー周波数の制御技術、「光学」 Vol. 54, No. 9, pp. *** (2025).
	2023年
3	洪鋒雷：精密分光，秒の再定義及び微細構造定数の恒常性、「レーザー研究」 Vol. 51, No. 8, pp. 522-526 (2023).
2	杉山陽平、赤松大輔、洪鋒雷：可視域高精度デュアルコム分光技術の開発、「光アライアンス」 Vol. 34, No. 9, pp. 38-42 (2023).
	2021年
1	洪鋒雷、吉井一倫：光コム・光周波数標準におけるPPLN導波路の応用、「光アライアンス」 Vol. 32, No. 7, pp. 14-18 (2021).