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1. (WO2019031289) TERAHERTZ WAVE GENERATION METHOD AND TERAHERTZ WAVE GENERATION DEVICE
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2019/031289 International Application No.: PCT/JP2018/028453
Publication Date: 14.02.2019 International Filing Date: 30.07.2018
IPC:
G02F 1/39 (2006.01) ,H01S 3/00 (2006.01) ,H01S 3/10 (2006.01)
G PHYSICS
02
OPTICS
F
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1
Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
35
Non-linear optics
39
for parametric generation or amplification of light, infra-red, or ultra-violet waves
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
S
DEVICES USING STIMULATED EMISSION
3
Lasers, i.e. devices for generation, amplification, modulation, demodulation, or frequency-changing, using stimulated emission, of infra-red, visible, or ultra-violet waves
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
S
DEVICES USING STIMULATED EMISSION
3
Lasers, i.e. devices for generation, amplification, modulation, demodulation, or frequency-changing, using stimulated emission, of infra-red, visible, or ultra-violet waves
10
Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
Applicants:
株式会社トプコン TOPCON CORPORATION [JP/JP]; 東京都板橋区蓮沼町75番1号 75-1, Hasunuma-cho, Itabashi-ku, Tokyo 1748580, JP
国立研究開発法人理化学研究所 RIKEN [JP/JP]; 埼玉県和光市広沢2番1号 2-1, Hirosawa Wako-shi, Saitama 3510198, JP
Inventors:
森口 祥聖 MORIGUCHI Yoshikiyo; JP
南出 泰亜 MINAMIDE Hiroaki; JP
Agent:
榎並 智和 ENAMI Tomokazu; JP
Priority Data:
2017-15516510.08.2017JP
Title (EN) TERAHERTZ WAVE GENERATION METHOD AND TERAHERTZ WAVE GENERATION DEVICE
(FR) PROCÉDÉ DE PRODUCTION D'ONDES TÉRAHERTZ ET DISPOSITIF DE PRODUCTION D'ONDES TÉRAHERTZ
(JA) テラヘルツ波発生方法、及びテラヘルツ波発生装置
Abstract:
(EN) Provided is a terahertz wave generation method used to generate a terahertz wave in a direction that satisfies non-collinear phase matching conditions by inputting pump light into a non-linear optical crystal capable of generating a terahertz wave based on the optical parametric effect, wherein pump light input into a non-linear optical crystal has a pulse width of 10 ps or greater and less than or equal to 1 ns with a repetition frequency of 1 kHz or greater so that the peak excitation power density thereof is greater than or equal to a given terahertz wave oscillation threshold and less than or equal to a given laser damage threshold and the average excitation power density thereof is less than or equal to a given photorefractive effect generation threshold.
(FR) L'invention concerne un procédé de production d'ondes térahertz utilisé pour produire une onde térahertz dans une direction qui vérifie des conditions de correspondance de phase non colinéaires par entrée d'une lumière de pompage dans un cristal optique non linéaire, susceptible de produire une onde térahertz en fonction de l'effet paramétrique optique, l'entrée de lumière de pompe dans un cristal optique non linéaire présentant une largeur d'impulsion supérieure ou égale à 10 ps et inférieure ou égale à 1 ns, la fréquence de répétition étant supérieure ou égale à 1 kHz, de sorte que la densité de puissance d'excitation de pic de ce dernier soit supérieure ou égale à un seuil d'oscillation d'onde térahertz donné et inférieure ou égale à un seuil de détérioration laser donné et que la densité de puissance d'excitation moyenne de ce dernier soit inférieure ou égale à un seuil de production d'effet photoréfractif donné.
(JA) 光パラメトリック効果によってテラヘルツ波発生が可能な非線形光学結晶にポンプ光を入射することにより、ノンコリニア位相整合条件を満たす方向にテラヘルツ波を発生させるテラヘルツ波発生方法は、ピーク励起パワー密度が所定のテラヘルツ波発振閾値以上であり、且つ所定のレーザー損傷閾値以下になり、平均励起パワー密度が所定のフォトリフラクティブ効果発生閾値以下になるように、10ps以上であり、且つ1ns以下のパルス幅を有し1kHz以上の繰り返し周波数を有するポンプ光を非線形光学結晶に入射させる。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)