轮回

今天跑去Boston给实验需要用的 resonator “贴金”,之前的那个上上周被我破坏掉了。这个贴金其实就是借用BU的一个 evaporator 在我们定制好的硅制的 resonator 上蒸上几百纳米的金。临走前和以前管这个的师兄讨论,才发现原来这基本上就是我5年前夏天在做的东西。那是大二大三之间的那个夏天,正式开始做君政,最起始的项目是做有机电致发光材料,基本程序就是在导电玻璃上一层层按顺序的蒸上各种材料,然后通电它就应该发光。我还记得那时liuyihong和我完成第一个样品,和老师一起把灯全部关掉,在一片黑暗中小心翼翼的连上电极,期待看到那传说中有点发黄有点发绿的小光芒,可惜,一点点光芒都没有。之后我们又作了无数样品,改了很多东西,但始终没看到过任何光芒。不是每个故事都有美好结局,折腾了半年,最后我们就改做其他东西了-_-。没想到5年后的今天,我还会再重复那时的步骤,而且还是一样的不顺。一开始的清洗步骤就有些不顺利,但还不算太糟,直到我们转移到另一栋楼,穿上连体衣戴上头套脚套进入超净室准备蒸样品,噩梦才刚开始。BU的这个实验室算是把很多组需要用的仪器集中在一起,大家可以共享。实验室在8楼,窗外的景色非常美,正好今天还超级风和日丽。不过实验室是fancy一点,仪器看上去高级一点,其实和我以前用的没有本质差别。蒸之前先要把我们的 resonator 放好地方,这 resonator 非常的薄所以格外脆弱,我紧螺丝的时候格外小心,可是显然帮我的那位BU的德国哥们比我豪爽,于是,于是,一个 resonator 就被他咔嚓弄断了:(,我们总共就只有三个,这下好,还没开始就牺牲了一个。我犯的一个错就是没随身带着双面胶,贴上去比用螺丝固定安全。弄断了一个,这位同学小心了很多,但是,没有用,很快,他又弄断了另一个,这下好了,只剩一个完整的了,咳咳。被折断的也不是完全不能用,但是基本上不可靠了,最后夹上去蒸的就是一个完整的和一个残废。把系统封好等抽真空的时候我脑中就在狂发疯,回去不知道怎么交代,却又不能当面责怪这位同学,啊啊啊啊,痛苦啊!不过当时至少还有那么一丝丝希望,可惜噩梦并没终止在那里。我们先蒸了点Cr后开始蒸金子Au,却没想到那看上去fancy的机器居然电极接触不良,没法有效加热Au,没法子只好破掉真空检查,这一打开就已经会影响样品质量了,结果调整完还是不行,总共开合了四五次,还叫来另一个学生,还是没辙,我那个绝望啊,靠靠靠!最后只得把样品取下来,拿回他们实验室用他们的 evaporator 蒸,问题是他们的真空系统不太有效,而且要是什么都没蒸也就罢了,Cr都上去了,这么一折腾回去天知道有多少脏东西,咳,不过也没办法了。回到他们实验室,这次有双面胶了,但即使用双面胶,那位同学还是把那个幸存的样品又破坏了一小角,唉。之后的还算顺利,似乎那个比较完整的样品看上去还不错,虽然我仍然不知道怎么回去和老板交待。轮回啊轮回,在哪里跌倒,就在哪里再跌倒。

火鸭云吞面折腾完已经下午快三点了,我早晨赶7点的汽车,就吃了两块饼干,咳咳,可怜啊。身上背着这么脆弱的样品,在街上逛荡神经也是高度紧张。不过我也不能太亏待自己,溜达了两圈,到了最近还挺喜欢的中国城的一个卤味店,要了一碗火鸭鲜虾云吞面,再加一杯冻奶茶。生活又似乎美好起来@_@。离开饭店前买了烧排骨和小肠给自己,然后又发现一家以前不知道的挺不错的中国超市,买了一点点东西,咳,其他不顺,这趟boston行也不能完全没收获吧。不过哪,这样品的坏运气到似乎带来点其他的好运气,回到家习惯性的查一家我已经想定很久但早早就客满的阿姆斯特丹的青年旅社 flying pig downtown店,结果发现,我要定的那天出现空位了,哈哈,这趟旅行唯一没定的东西也搞定了。这家旅社地处市中心红灯区,口碑好乐趣多,而且 terms and conditions 里明确歧视儿童和中年人,注明只接待18岁以上40岁以下的人儿,用的字眼是“we do not allow”,说是要“preserve and maintain our laid-back atmosphere”,另外也不接待疯狂球迷-_-。说远了,总之至少今天不是什么事都不顺。虽然,明天和老板的碰头,我还是怕怕,即使这次东西不是我破坏的:(。

6 comments

  1. you are doing Si resonator on SOI structures?

    BTW: German normally are very clever and careful when they do some experiments. This one is not a typical German I think. cmft

  2. I’m still not quite familiar with this resonator thing. It’s just some kind of huge resonator cut from a SOI wafer, I think. We need it to measure some very very small forces.

    For Germans, I also think they are extremely into details and doing things into perfection. Our lasers are all from Germany. I guess this one probably spent too much time in US (i think he did his under here), so has been inevitably influenced, hoho.

    ps: I saw your happy photos the other day on yuki’s blog, hoho, good taste;)

  3. true.
    in my college years, i often copied the computer codes and modified a little before i handed in. now my job is basicly coding in FORTRAN. have to pick up everything from the beginning.

  4. Thanks. :P Actually it was supposed to be broadcasted within 426 intranet, that’s why the tune is a bit mushy. hope you guys did not throw up ;)

    my phd topic is photonic crystal structures based on SOI. since we are a very small group and had no experimental experience before, it would be a long way to go. my master was dealing with resonators made of silica, and we measure the mechanical modes due to the mutual coupling between optical and mechanical modes of the cavity. have no idea about how to measure small forces, good luck ;)

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