Among them, the novel common-path heterodyne interferometric system, which is built with a pair of quarter waveplates to improve the measurement sensitivity, is my original design. 其中改良式外差干涉術(shù),為我們最新提出的量測方式,是在共光程外差干涉儀中,加入兩個(gè)四分之一波片,藉此增加我們量測折射率的靈敏度。