Question: What Is Evanescent?

What is meaning of evanescent?

noun.

the quality of being fleeting or vanishing quickly; impermanence: the evanescence of dreams.

the act or fact of vanishing quickly: The target audience is left only with the dominant message after the evanescence of the advertisement..

What does ignominy mean?

deep personal humiliation and disgrace1 : deep personal humiliation and disgrace. 2 : disgraceful or dishonorable conduct, quality, or action.

What is mode coupling in optical fiber?

Mode is the path for light rays through an optical fiber. If an optic fiber supports only one mode, it is called as single mode fiber. Mode coupling leads to intramodal dispersion like material dispersion and waveguide dispersion and also intermodal dispersion. …

What does it mean if something is germane?

1 : being at once relevant and appropriate : fitting omit details that are not germane to the discussion.

What does nuisance mean?

: something (as an act, object, or practice) that invades or interferes with another’s rights or interests (as the use or enjoyment of property) by being offensive, annoying, dangerous, obstructive, or unhealthful. — attractive nuisance.

What is evanescent mode in waveguide?

Evanescent modes are modes below the cutoff frequency. They cannot propagate down the waveguide for any distance, dying away exponentially. However, they are important in the functioning of certain filter components such as irises and posts, described later, because energy is stored in the evanescent wave fields.

What is evanescent field in optical fiber?

An evanescent field is set up when the optical fiber core (refractive index, n1) is placed into a medium of lower refractive index (n2), under conditions of TIR (θ > θc). Another crucial factor to consider when designing a fiber optic biosensor is the waveguide parameter of the optical fiber, or V-number.

What does Foresight mean?

1 : an act or the power of foreseeing : prescience Through foresight she could tell what the outcome would be. 2 : provident care : prudence had the foresight to invest his money wisely. 3 : an act of looking forward also : a view forward.

What is the best meaning of dissimulation?

The noun dissimulation describes the act of faking your true feelings. Your dissimulation of happiness might fool strangers but your close friends can tell it’s all an act.

What is the definition of dissimulation?

transitive verb. : to hide under a false appearance smiled to dissimulate her urgency— Alice Glenday.

What does Overacuteness mean?

sharp or severe in effect; intense: acute sorrow;an acute pain. extremely great or serious; crucial; critical: an acute shortage of oil.

What does Mundanity mean?

the condition or quality of being mundane; mundaneness. an instance of being mundane: one of the mundanities of everyday life.

What does neophyte mean in Greek?

Neo: An abbreviated term for the Greek word Neophyte, meaning beginner. A neophyte is someone who is new to the organization. On Yard: An organization that has active status on campus. … This is the first time when newly initiated members of each fraternity/sorority are revealed to the rest of campus.

How do you use evanescent in a sentence?

Evanescent in a Sentence 🔉We would have all missed the evanescent moment if not for the photographer’s speed and skill. … Even though April seemed interested in taking piano lessons now, her mother knew her interest was only evanescent and would soon disappear.More items…

What does neophyte mean?

1 : a new convert : proselyte. 2 : novice sense 1. 3 : tyro, beginner a neophyte when it comes to computers neophytes fresh from graduate schools of business.

What does concealment mean?

to hide; withdraw or remove from observation; cover or keep from sight: He concealed the gun under his coat. to keep secret; to prevent or avoid disclosing or divulging: to conceal one’s identity by using a false name.