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  2. Coherence length - Wikipedia

    en.wikipedia.org/wiki/Coherence_length

    Multimode helium–neon lasers have a typical coherence length on the order of centimeters, while the coherence length of longitudinally single-mode lasers can exceed 1 km. Semiconductor lasers can reach some 100 m, but small, inexpensive semiconductor lasers have shorter lengths, with one source [4] claiming 20 cm. Singlemode fiber lasers with linewidths of a few kHz can have coherence ...

  3. Line of beauty - Wikipedia

    en.wikipedia.org/wiki/Line_of_beauty

    Serpentine lines from Hogarth's The Analysis of Beauty. Line of beauty is a term and a theory in art or aesthetics used to describe an S-shaped curved line (a serpentine line) appearing within an object, as the boundary line of an object, or as a virtual boundary line formed by the composition of several objects.

  4. Elements of art - Wikipedia

    en.wikipedia.org/wiki/Elements_of_art

    Elements of art are stylistic features that are included within an art piece to help the artist communicate. [1] The seven most common elements include line, shape, texture, form, space, color and value, with the additions of mark making, and materiality.

  5. Ligne claire - Wikipedia

    en.wikipedia.org/wiki/Ligne_claire

    Ligne claire (French: [liɲ(ə) klɛːʁ]; Dutch: klare lijn [ˈklaːrə ˈlɛin]; both meaning "clear line") is a style of drawing created and pioneered by Hergé, the Belgian cartoonist and creator of The Adventures of Tintin. It uses clear strong lines sometimes of varied width and no hatching, while contrast is downplayed as well. Cast ...

  6. Line art - Wikipedia

    en.wikipedia.org/wiki/Line_art

    One of the most fundamental elements of art is the line. An important feature of a line is that it indicates the edge of a two-dimensional (flat) shape or a three-dimensional form. A shape can be indicated by means of an outline, and a three-dimensional form can be indicated by contour lines. [1]

  7. Line (graphics) - Wikipedia

    en.wikipedia.org/wiki/Line_(graphics)

    Line is one of the main components of design including principles such as shape, color, texture, value, perspective, and form. Lines can appear in many different forms some examples may be straight or curved; continuous or dotted; thick or thin; and real and implied. Line can be used to create structure and tone in illustrations and other artworks.

  8. Shape and form (visual arts) - Wikipedia

    en.wikipedia.org/wiki/Shape_and_form_(visual_arts)

    A form is an artist's way of using elements of art, principles of design, and media. Form, as an element of art, is three-dimensional and encloses space. Like a shape, a form has length and width, but it also has depth. Forms are either geometric or free-form, and can be symmetrical or asymmetrical.

  9. Coherence (physics) - Wikipedia

    en.wikipedia.org/wiki/Coherence_(physics)

    The coherence length is defined as the distance the wave travels in time . [11]: 560, 571–573 The coherence time is not the time duration of the signal; the coherence length differs from the coherence area (see below).