Development of non-destructive photon detection method using radiation pressure

开发利用辐射压力的无损光子探测方法

• 批准号: 18206008
• 负责人: SASAKI Keiji
• 金额: $ 30.78万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-18206008/
• 关键词: 超精密計測; 光ピンセット; 微小共振器; マイクロ・ナノデバイス; 量子エレクトロニクス; 微小球共振器; 顕微分光イメージング; 金属ナノ構造体; 光局在; 光反応増強

In this research project, we were aiming to develop a new optical measurement method based on an original idea that photons can be nondestructively detected by use of radiation pressure. For this purpose, we studied a) a technique for enhancing the photon field towards the single photon detection, b) a force measurement method with ultra high sensitivity and with low thermal noise. By using the developed method, a single photon can be observed repeatedly, so that this method will make it possible to measure multiple parameters of temporal and spatial properties of photon. For example, we experimentally determined the enhancement factor corresponding to Q-value of an optical microcavity. We also estimated the experimental conditions such as the expected displacement and sensitivity necessary for position sensing. From these estimations, we designed the system using Fabry-Perot interferometer. In addition, we measured the displacement of a metal-coated tip of an atomic force microscope that was irradiated with frequency-modulated laser beam. We have successfully detected the vibration component of radiation pressure separately from the thermal deformation. From these results, we designed and developed the Fabry-Perot interferometer with a mirror of the metal-coated tip. Furthermore, we developed an apparatus for preparing a tapered optical fiber, and determined the optimal conditions for obtaining the taper shape suitable for optical coupling. We made it possible to reliably prepare fine (<1um) taper. Then, we developed a coupling system between the tapered fiber and microcavities such as microspheres and toroids, which provided highly efficient optical coupling nearly reaching to perfect condition.

在这个研究项目中，我们的目标是开发一种新的光学测量方法，该方法基于一个原始的想法，即利用辐射压力可以无损地检测光子。为此，我们研究了a)用于单光子探测的增强光子场技术，b)具有超高灵敏度和低热噪声的测力方法。利用该方法可以重复观测单个光子，从而使测量多个光子的时间和空间特性参数成为可能。例如，我们实验确定了与光学微腔的Q值相对应的增强因子。我们还估计了位置传感所需的预期位移和灵敏度等实验条件。根据这些估计，我们设计了使用法布里-珀罗涉仪的系统。此外，我们还测量了原子力显微镜的金属涂层尖端在调频激光照射下的位移。我们成功地分别检测了辐射压力和热变形的振动分量。根据这些结果，我们设计并研制了具有金属涂层针尖反射镜的法布里-珀罗涉仪。此外，我们还研制了一种锥形光纤的制备装置，并确定了获得适合光耦合的锥形光纤的最佳条件。我们使可靠地制备精细(&lt；1um)锥度成为可能。然后，我们开发了锥形光纤与微腔(如微球和环状)之间的耦合系统，提供了接近理想状态的高效光耦合。

项目成果

Fiber-microsphere laser with a submicrometer sol-gel silica glass layer codoped with erbium, aluminum, and phosphorus

• DOI: 10.1063/1.2711384
• 发表时间: 2007-03
• 期刊: Applied Physics Letters
• 影响因子: 4
• 作者: H. Takashima;H. Fujiwara;S. Takeuchi;K. Sasaki;Masahide Takahashi

Molecular Nano Dynamics Vol.1, Chap.7 : Dynamic analysis using photon force measurement

分子纳米动力学第 1 卷第 7 章：使用光子力测量进行动态分析

• 发表时间: 2009
• 作者: 藤沢 潤一;木下 卓巳;実平 義隆;中崎 城太郎;内田 聡;久保 貴哉;瀬川 浩司;H.Fujiwara
• 通讯作者: H.Fujiwara

Analysis of quantum dot fluorescence coupled with a microsphere resonator

与微球谐振器耦合的量子点荧光分析

• 发表时间: 2006
• 期刊: Jpn. J. Appl. Phys. 45, 9A
• 作者: Y.Sawai;H.Nabika;M.Kiguchi;Y.Sawai;B.Takimoto;M.Kiguchi;B.Takimoto;M.Kiguchi;B.Takimoto;H.Nabika;K.Murakoshi;J.Li;Y.Sawai;沢井 良尚;沢井良尚;H.Takashima;H.Fujiwara;H.Takashima
• 通讯作者: H.Takashima

ランダム媒質のレーザー発振および局在モードの数値解析

随机介质中激光振荡和局域模式的数值分析

• 发表时间: 2006
• 期刊: 光学 35, 7
• 作者: Y.Sawai;H.Nabika;M.Kiguchi;Y.Sawai;B.Takimoto;M.Kiguchi;B.Takimoto;M.Kiguchi;B.Takimoto;H.Nabika;K.Murakoshi;J.Li;Y.Sawai;沢井 良尚;沢井良尚;H.Takashima;H.Fujiwara;H.Takashima;藤原 英樹
• 通讯作者: 藤原 英樹

Polarization-discriminated spectra of a fiber-microsphere system

• DOI: 10.1063/1.2355473
• 发表时间: 2006-09
• 期刊: Applied Physics Letters
• 影响因子: 4
• 作者: Hidenori Konishi;Hideki Fujiwara;Shigeki Takeuchi;Keiji Sasaki