JP2014518387A - ポンプ・プローブ分光法におけるパルス管理装置 - Google Patents
ポンプ・プローブ分光法におけるパルス管理装置 Download PDFInfo
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Abstract
【選択図】図1
Description
Claims (7)
- 「ポンプ」パルスと呼ばれる第1の光パルスを受けたサンプルの反応を測定するための、光パルスの管理装置であって、
前記測定は、「プローブ」パルスと呼ばれ、前記「ポンプ」パルスに対して所定の時間間隔だけシフトした、第2の光パルスを受けたサンプルにより発生したシグナルを、分析することにより実行され、
二つのパルスレーザ光源(1、3)からそれぞれ発生し、「ポンプ」ビームと呼ばれる第1ビーム及び「プローブ」ビームと呼ばれる第2ビームの二つの光ビームのパルスの検出に適した、二つの光検出器(21、23)であって、前記各ビームは、相異なった、任意の、かつ、所定の期間安定した、各繰り返し周波数を有し、前記サンプルの方向に向かうパルスを発生する、光検出器と、
前記第1ビーム及び前記第2ビームそれぞれから生じ、前記サンプルの反応を測定するための「ポンプ」パルス及び「プローブ」パルスを構成する、二つのパルスの間の前記時間間隔を決定するのに適し、前記光検出器が接続されたコンピュータ(25)とを含み、
前記コンピュータは、前記サンプルの反応を測定するための分析器(15)に接続するコネクタを備え、入力パラメータとして、前記二つのパルスを含む測定のための前記コンピュータにより決定された前記時間間隔を有し、
前記コンピュータは、前記時間間隔を決定するために前記繰り返し周波数の安定性を利用したアルゴリズムを用いることを特徴とする装置。 - 前記二つのビームの各々に位置する二つのパルス選択器をさらに備え、
前記各選択器は、サンプルに向けて、サンプルが置かれた前記ビームの特定のパルスを送信するのに適し、
前記送信されたパルスは、前記第1ビームの選択されたパルス及び前記第2ビームの選択されたパルスの間の前記時間間隔が所定の値になるように、前記コンピュータにより選択されることを特徴とする請求項1に記載の装置。 - 前記パルス選択器は光増幅器であることを特徴とする請求項2に記載の装置。
- 前記コンピュータは、前記第1ビームのパルスと前記第2ビームのパルスの間の時間的な一致を検出し、内挿又は外挿により、二つのパルス間の前記時間間隔の発展の法則を決定するために、二つの同時発生の間に各ビームにより生成されたパルスの数をカウントするのに適していることを特徴とする請求項1〜3のいずれか一項に記載の装置。
- 前記コンピュータは、一連のパルス対の前記時間間隔の全てが所定の測定間隔のサンプリングを可能とするように、各対が前記第1ビームのパルスと前記第2ビームのパルスからなる一連のパルス対を選択するのに適していることを特徴とする請求項1〜4のいずれか一項に記載の装置。
- 前記光検出器は干渉計の形で接続され、二つのパルスの時間的重ね合わせが前記コンピュータに対して一致シグナルをトリガーするように、前記干渉計の干渉シグナルは少なくとも一つのフォトダイオードにより検出されることを特徴とする請求項1〜5のいずれか一項に記載の装置。
- 前記光検出器はそれぞれ、各パルスを、電子的「時間―デジタル変換器」(TDC)回路に対する入力信号として機能する電気信号に変換するのに適した、一つのフォトダイオードを備えることを特徴とする請求項1、2、3又は5のいずれか一項に記載の装置。
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FR1155799A FR2977320B1 (fr) | 2011-06-29 | 2011-06-29 | Dispositif de gestion d'impulsions en spectroscopie pompe-sonde. |
FR1155799 | 2011-06-29 | ||
PCT/FR2012/051494 WO2013001242A1 (fr) | 2011-06-29 | 2012-06-28 | Dispositif de gestion d'impulsions en spectroscopie pompe - sonde |
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WO2020121856A1 (ja) * | 2018-12-13 | 2020-06-18 | Gセラノスティックス株式会社 | 光出力システム、測定システム、光学的ポンプ・プローブ走査トンネル顕微鏡システム、演算器、プログラム、演算方法 |
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FR2977320B1 (fr) * | 2011-06-29 | 2014-11-21 | Ecole Polytech | Dispositif de gestion d'impulsions en spectroscopie pompe-sonde. |
US9151407B2 (en) * | 2012-11-02 | 2015-10-06 | Fisher Controls International Llc | Valve cage having zero dead band between noise abatement and high capacity flow sections |
ITUB20154173A1 (it) | 2015-10-01 | 2017-04-01 | Datalogic IP Tech Srl | Sensore optoelettronico e metodo di funzionamento di un sensore optoelettronico |
CN111665222A (zh) * | 2020-07-17 | 2020-09-15 | 中国科学院长春光学精密机械与物理研究所 | 飞秒泵浦探测系统及方法 |
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US5706094A (en) * | 1995-08-25 | 1998-01-06 | Brown University Research Foundation | Ultrafast optical technique for the characterization of altered materials |
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FR2977320B1 (fr) * | 2011-06-29 | 2014-11-21 | Ecole Polytech | Dispositif de gestion d'impulsions en spectroscopie pompe-sonde. |
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WO2007045773A1 (fr) * | 2005-10-21 | 2007-04-26 | Centre National De La Recherche Scientifique (C.N.R.S.) | Dispositif d'echantillonnage optique heterodyne |
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Cited By (3)
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WO2020121856A1 (ja) * | 2018-12-13 | 2020-06-18 | Gセラノスティックス株式会社 | 光出力システム、測定システム、光学的ポンプ・プローブ走査トンネル顕微鏡システム、演算器、プログラム、演算方法 |
JPWO2020121856A1 (ja) * | 2018-12-13 | 2021-09-30 | Gセラノスティックス株式会社 | 光出力システム、測定システム、光学的ポンプ・プローブ走査トンネル顕微鏡システム、演算器、プログラム、演算方法 |
JP2021193380A (ja) * | 2018-12-13 | 2021-12-23 | Gセラノスティックス株式会社 | 光出力システム、測定システム、光学的ポンプ・プローブ走査トンネル顕微鏡システム、演算器、プログラム、演算方法 |
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WO2013001242A1 (fr) | 2013-01-03 |
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US10190972B2 (en) | 2019-01-29 |
JP6132362B2 (ja) | 2017-05-24 |
FR2977320B1 (fr) | 2014-11-21 |
US20140293288A1 (en) | 2014-10-02 |
JP6470343B2 (ja) | 2019-02-13 |
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