Optics_book

Language activity

Exercise 1. Summarize your knowledge of the Absolute Participial Construction. Find the constructions in the sentences. Translate the sentences into Russian.

Rare elements possessing wonderful properties, it makes them indispensable in science and technology.
With the experiments having been carried out, we started our calculations.
There being no time left, we had to hurry.
Multiple statements expose several viewpoints, each leading to different solutions.
The energy sources of the world decreasing, the scientists must find new sources of energy.
With revenues declining in power industry, some utilities began to apply fiber optics as new revenue streams.
This country has good ports, each possessing good rail connection with the interior.
Normally only three operators are required, their duties being concerned with loading of the raw material.
The conference being over, the delegates made a tour of the country.

Exercise 2. Summarize your knowledge of the Gerund. Find Gerunds and state their tense, voice and function. Translate the sentences into Russian.

Electronic control has become so available that more and more equipment buyers insist on having it.
Good management involves selecting people who know when to listen and when to act.
Finding enough workers is not a concern for employers nowadays. But finding the right ones may be.
This hologram made with laser light is worth seeing.
After making a few more experiments professor Benton drew some new conclusions.
In doing the work we meet with lots of problems.
A specialist wants 96 per cent of the facts before making a decision, whereas a manager can cope with 30 per cent of the available facts and still make a decision that will work.
Buying capital equipment such as electron microscopes, up-to-date computers, advanced technologies can be a strain on a company’s resources.

Exercise 3. In the texts about lasers you have come across adverbs as considerably, frequently, continuously etc. Let’s remember what an adverb is.

At first, these are words which inform us about:

how something is done (quickly, slowly, carefully, on foot, by bus, etc.). These are adverbs and adverbial phrases of manner;
where something is done (there, at home, in England, on Web, at work, etc.). These are adverbs and adverbial phrases of place;
when something is done (yesterday, today, next week, at 5 o’clock, etc.). These are adverbs and adverbial phrases of time.

Now, you should remember the order of these words in a sentence: it is “manner-place-time”.

Example: Our students made this experiment successfully last week.

However this order changes as soon as we meet “movement verbs”. Then the order is: “place-manner-time”.

Example: We went to the Computing laboratory quickly after classes.

Try this exercise.

I worked (at the office, hard, today).
I’m travelling (every summer, by bicycle, to my native village).
He studied (last year, a lot, at university).
I drive (every morning, to work).
The friend walked (through the park, home, this afternoon).
The orchestra performed (at the concert, magnificently, last night).
She translated the text (quickly, yesterday, at the lesson).
The engineers return (by plane, to France, every weekend).

Exercise 4. Read and give Russian equivalents to the adverbs with two forms and differences in meaning.

deep = a long way down full = exactly, very late = not early wide = fully; off target

deeply = greatly fully = completely lately = recently widely = to a large extent

direct = by the shortest route hard = intently: with effort near = close wrong = incorrectly

directly = immediately hardly = scarcely nearly = almost wrongly = incorrectly; unjustly

easy = gently and slowly high = at/to a high level short = suddenly; off target

easily = without difficulty highly = very much shortly = soon

free = without cost last = after all others sure = certainly

freely = willingly lastly = finally surely = without doubt

Exercise 5. Fill in: hard, hardly, hardly ever / anyone / anything.

All that day, I'd been thinking 1) ...hard... to myself about whether or not to go to Jane's party. I 2) ................ go to parties, but this time I thought I'd make an effort. I worked 3) ............... all day so that I could leave early and get ready. When I got home, I looked for something nice to wear, and eventually decided on a red dress that I had 4) ............... worn and 5) ............... had seen me in before. Unfortunately, I got caught in the rain and when I eventually arrived there was 6) ............... left, just a couple of Jane's friends. I had 7) ............... talked to them before so making conversation was very 8) ............... . As I had eaten 9) ............... all day, I spent the rest of the party in the kitchen alone!

Exercise 6. Underline the correct item, then explain the difference in meaning.

The soldier near/nearly died as a result of being hit full/fully in the chest by a bullet, which penetrated deep/deeply inside him.
Simon told everyone he would pass the exam easy/easily, so he was deep/deeply embarrassed when he came last/lastly in the class, with 20%.
“I sure/surely am happy to meet you,” said the reporter to the high/highly respected singer. “You're pretty/prettily famous around here, you know.”
When he was almost full/fully recovered from his illness the doctor told him to take it easy/easily and said that he would be able to return to work short/shortly.
As he was found near/nearly the scene of the murder with a knife in his hand, it is hard/hardly surprising that he was wrong/wrongly accused.
Sure/Surely you can't have answered every question wrong/wrongly.
Rob was a very poor archer. His first arrow fell short/shortly of the target, his second flew about 10 metres wide/widely and the third flew high/highly into the air and landed behind him.
Although he arrived an hour late/lately, he started work direct/directly and tried hard/hardly to make up for lost time.
Lately/Late she has been getting all her clothes freely/free from the fashion company, so I can't understand why she doesn't dress more prettily/pretty.
It is wide/widely believed that there is a bus that goes direct/directly from here to the airport, but it's not true.
Last/Lastly, I would like to say that I would free/freely give my life for the cause of world peace.

Unit 3

WORD-STUDY

Exercise 1. Check up the transcription in the dictionary and read the words listed below.

Nouns

junction, cavity, feedback, crystal, flash, radiation.

Verbs

apply, process, excite, stimulate, induce, inject, pump.

Adjectives

transparent, spontaneous, entire, uniform, coherent.

Exercise 2. Translate noun – adjective pairs of words.

Atom – atomic

Molecule – molecular

Electron – electronic

Energy – energetic

System – systematic

Bulk – bulky

Period – periodic

Loss – lossy.

Exercise 3. Fix your attention on the prefix “re” – meaning “again”. Translate these verbs.

Read – reread

Write – rewrite

Make – remake

Combine – recombine

Design – redesign.

UNDERSTANDING A PRINTED TEXT

List of Terms:

coherence – когерентность

coherent - связанный

coherent radiation – когерентное излучение

continuous operation – непрерывное действие

directionality – направленность

flash-lamp – лампа-вспышка

fluorescence – флуоресценция

frequency width – полоса частот

input energy – входная энергия

injection – впрыскивание, нагнетание

efficiency - КПД

pulsed condition – импульсный режим

resonator – резонатор

solid-state laser – твердотельный лазер

spontaneous radiation – спонтанное излучение

end face – торцевая поверхность

excitation current – ток возбуждения

facing side – лицевая сторона

feedback – обратная связь

induced recombination – индуцированная рекомбинация

injection laser – инжекционный лазер

optical pumping – оптическая накачка

back and forth – взад и вперед

LED – light emitting diode - светодиод

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