Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Kotaro Imasaka"'
極端紫外～軟X線域のパルス光生成のための光源を得るため、LiInS2結晶を用いた非同軸光パラメトリック増幅法(Noncollinear optical parametric amplification: NOPA)により赤外超短パルス光発生を行っ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::36d10b1123a76da30f2e71ed56ff9467
https://repo.qst.go.jp/records/86411
https://repo.qst.go.jp/records/86411
極端紫外～軟X線域のパルス光生成のための光源を得るため、LiInS2結晶を用いた非同軸光パラメトリック増幅法(Noncollinear optical parametric amplification: NOPA)により近赤外フェムト秒光パルス生
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::f246ba0fca114a65058213a04a5a1c34
https://repo.qst.go.jp/records/86009
https://repo.qst.go.jp/records/86009
極端紫外～軟X線光パルス生成を行うための光源として、LiInS2結晶を用いた非同軸光パラメトリック増幅法(Non-collinear optical parametric amplification: NOPA)により近赤外フェムト秒光パルス生成を
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::23438f8c94fb381c0323c065c51eae90
https://repo.qst.go.jp/records/83016
https://repo.qst.go.jp/records/83016
Publikováno v:
Optics Continuum. 1:1956
We demonstrate non-collinear optical parametric amplification (NOPA) in LiInS2 to generate ultrashort near-infrared pulses. White light pulses around 1400 nm generated in yttrium aluminum garnet are amplified by five orders of magnitude up to 1.0 µJ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d5e18465018aafc42bda4170850054b
https://doi.org/10.1364/optcon.467462
https://doi.org/10.1364/optcon.467462
Autor:
Kotaro Imasaka, Yasushi Shinohara, Tomohiro Kaji, Keisuke Kaneshima, Nobuhisa Ishii, Jiro Itatani, Kenichi L. Ishikawa, Satoshi Ashihara
Publikováno v:
Optics Continuum. 1:1232
We demonstrate high harmonic generation from GaSe in the deep-UV range with its photon energy reaching three times the bandgap energy. The harmonic spectrum represents a clear dependence on the crystal orientation with respect to the incident field,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9dc07014c91cae9362aac6a1b927762b
https://doi.org/10.1364/optcon.451394
https://doi.org/10.1364/optcon.451394
Autor:
Nobuyoshi Hiramatsu, Fumiya Kusa, Kotaro Imasaka, Ikki Morichika, Akinobu Takegami, Satoshi Ashihara
Publikováno v:
Journal of Applied Physics; 2016, Vol. 120 Issue 17, p1-6, 6p, 1 Color Photograph, 1 Diagram, 2 Graphs
Autor:
Satoshi ASHIHARA, Kotaro IMASAKA
Publikováno v:
The Review of Laser Engineering. 48:174
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::604246fd1e15e1d19401fac67c87069f
https://doi.org/10.2184/lsj.48.4_174
https://doi.org/10.2184/lsj.48.4_174
Publikováno v:
EPJ Web of Conferences, Vol 205, p 02024 (2019)
High harmonic generation (HHG) in solids has great potential for coherent extreme ultraviolet (EUV) sources, all-optical band-structure reconstruction, and electron dynamics metrology. Solid HHG driven by plasmonic near-fields will open a new paradig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0fcac7ffaa2c4b2e560028c2041889c
https://pubmed.ncbi.nlm.nih.gov/30119439
https://pubmed.ncbi.nlm.nih.gov/30119439
Autor:
Takuya Satoh, Tsutomu Shimura, Roman V. Pisarev, L. N. Bezmaternykh, Kotaro Imasaka, Alexandra M. Kalashnikova
Publikováno v:
Physical Review B. 98
Excitation of four coherent phonon modes of different symmetries has been realized in copper metaborate CuB$_2$O$_4$ via impulsive stimulated Raman scattering (ISRS). Phonons were detected by monitoring changes in the linear optical birefringence usi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e2a94d7b8fb05b9fda33e7149fb3717
https://doi.org/10.1103/physrevb.98.054303
https://doi.org/10.1103/physrevb.98.054303
Autor:
Jiro Itatani, Nobuhisa Ishii, Satoshi Ashihara, Yasushi Shinohara, Kenichi L. Ishikawa, Kotaro Imasaka, Tomohiro Kaji, Kengo Takeuchi, Keisuke Kaneshima
Publikováno v:
Physical Review Letters. 120
The polarization property of high harmonics from gallium selenide is investigated using linearly polarized midinfrared laser pulses. With a high electric field, the perpendicular polarization component of the odd harmonics emerges, which is not prese
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a4a177388e1753e966c9faabe31b46e6
https://doi.org/10.1103/physrevlett.120.243903
https://doi.org/10.1103/physrevlett.120.243903